Compounds of reverse turn mimetics and the use thereof

ABSTRACT

Conformationally constrained compounds that are novel and mimic the secondary structure of reverse-turn regions of biologically active peptides and proteins and having bicyclic framework are disclosed, as well as their prodrugs. Such reverse-turn mimetic structures and prodrugs have utility over a wide range of fields, including use as diagnostic and therapeutic agents. The invention also relates to a use of such compounds for the preparation of a medicament for treating or preventing cancer including an acute myeloid leukemia.

TECHNICAL FIELD

The present invention relates generally to novel compounds of reverse-turn mimetics and their application in the treatment of medical conditions, e.g., cancer diseases, and pharmaceutical compositions comprising the mimetics.

BACKGROUND ART

Random screening of molecules for possible activity as therapeutic agents has occurred for many years and resulted in a number of important drug discoveries. While advances in molecular biology and computational chemistry have led to increased interest in what has been termed “rational drug design,” such techniques have not proven as fast or reliable as initially predicted. Thus, in recent years there has been a renewed interest and return to random drug screening. To this end, particular strides having been made in new technologies based on the development of combinatorial chemistry libraries, and the screening of such libraries in search for biologically active members.

Initially, combinatorial chemistry libraries were generally limited to members of peptide or nucleotide origin.

While combinatorial libraries containing members of peptide and nucleotide origin are of significant value, there is still a need in the art for libraries containing members of different origin. For example, traditional peptide libraries to a large extent merely vary the amino acid sequence to generate library members. While it is well recognized that the secondary structures of peptides are important to biological activity, such peptide libraries do not impart a constrained secondary structure to its library members.

To this end, some researchers have cyclized peptides with disulfide bridges in an attempt to provide a more constrained secondary structure (Tumelty et al., J. Chem. Soc. 1067-68, 1994; Eichler et al., Peptide Res. 7:300-306, 1994). However, such cyclized peptides are generally still quite flexible and are poorly bioavailable, and thus have met with only limited success.

More recently, non-peptide compounds have been developed which more closely mimic the secondary structure of reverse-turns found in biologically active proteins or peptides. For example, U.S. Pat. No. 5,440,013 to Kahn and published PCT Applications Nos. WO94/03494, WO01/00210A1, and WO01/16135A2 to Kahn each disclose conformationally constrained, non-peptidic compounds, which mimic the three-dimensional structure of reverse-turns. In addition, U.S. Pat. No. 5,929,237 and its continuation-in-part U.S. Pat. No. 6,013,458, both to Kahn, disclose conformationally constrained compounds which mimic the secondary structure of reverse-turn regions of biologically active peptides and proteins. The synthesis and identification of conformationally constrained, reverse-turn mimetics and their application to diseases were well reviewed by Obrecht (Advances in Med. Chem., 4, 1-68, 1999).

While significant advances have been made in the synthesis and identification of conformationally constrained, reverse-turn mimetics, there remains a need in the art for small molecules which mimic the secondary structure of peptides. There is also a need in the art for libraries containing such members, as well as techniques for synthesizing and screening the library members against targets of interest, particularly biological targets, to identify bioactive library members.

In the mean time, a proto-oncogene is a normal gene that can become an oncogene due to mutations or increased expression. c-Myc (MYC) is known as one of the proto-oncogenes, and dysregulation of c-Myc is considered one of a series of oncogenic events required for mammalian tumorigenesis (Pelengaris S, Khan M. The many faces of c-MYC. Arch Biochem Biophys. 2003; 416:129-136). MYC dysregulation, via a variety of mechanisms, was also found to be associated with myeloid leukemias (Hoffman B, Amanullah A, Shafarenko M, Liebermann D A. The proto-oncogene c-myc in hematopoietic development and leukemogenesis. Oncogene. 2002; 21: 3414-3421). In addition, c-Myc was found to rapidly induce acute myeloid leukemia (Hui Luo et al. “c-Myc rapidly induces acute myeloid leukemia in mice without evidence of lymphoma-associated antiapoptotic mutations,” Blood, 1 Oct. 2005, volume 106, Number 7, pp 2452˜2461).

As c-Myc can be upregulated in acute myeloid leukemia, the oncogenic function of c-Myc has been studied and its exact role in myeloid leukemogenesis has been studied. Recently, some scientist found that Myc preferentially stimulated the growth of myeloid progenitor cells in methylcellulose and showed that Myc is a critical downstream effector of myeloid leukemogenesis (ibid.).

The finding that c-Myc plays a critical role in myeloid leukemogenesis indicates that by inhibiting an activation of c-Myc protein, an acute myeloid leukemia can be cured or prevented.

On the other hand, enzymes of the cytochrome P450 (CYP) superfamily are the major determinants of half-life and execute pharmacological effects of many therapeutic drugs. The human cytochrome P450 (CYP) 3A subfamily, includes CYP3A4, which is most abundant in the human liver (˜40%) and metabolizes more than 50% of clinically used drugs (Shimada et al 1994; Rendic and Di Carlo 1997).

Due to the key role of CYP3A4 in drug metabolism, significant inactivation of this enzyme could result in marked pharmacokinetic drug-drug interactions. Inhibition of CYP3A4 may cause severe drug toxicity through the enhanced exposure to coadministered drugs (Dresser et al 2000). For example, when irreversible CYP3A4 inhibitors such as erythromycin or clarithromycin are coadministered with terfenadine, astemizole, or pimozide patients may experience Torsades de pointes (a life-threatening ventricular arrhythmia associated with QT prolongation) (Spinier et al 1995; Dresser et al 2000). Cancer patients, at times, undergo multiple treatment regimes, which increases the risk of drug-drug interactions followed by adverse drug reactions.

Therefore, in developing therapeutic agents, especially when it is to be administered in combination with other drugs, there is a need for providing compounds having less CYP3A4 inhibitory activity.

DISCLOSURE OF INVENTION Technical Problem

The object of the present invention is to provide novel compounds which mimic the secondary structure of reverse-turn regions of biologically active peptides and proteins and have biological activity such as anti-cancer effect.

Another object of the present invention is to provide novel compounds which inhibit Wnt signaling.

Yet another object of the present invention is to provide novel compounds which can be used as pharmaceuticals, in particular having less CYP3A4 inhibitory activity (higher IC50).

Yet another object of the present invention is to provide novel compounds for a treatment or a prevention of acute myeloid leukemia.

Technical Solution

The present invention is directed to a new type of conformationally constrained compounds and derivatives including prodrugs thereof, which mimic the secondary structure of reverse-turn regions of biologically active peptides and proteins. This invention also discloses libraries containing such compounds, as well as the synthesis and screening thereof.

The compounds of the present invention have the following general Formula (I):

wherein E is —ZR₃— or —(C═O)—, wherein Z is CH or N; W is —(C═O)—, —(C═O)NH—, —(C═O)O—, —(C═O)S—, —S(O)₂— or a bond; and each of R₁, R₂, R₃, R₄ and R₅ is the same or different and independently an amino acid side chain moiety or an amino acid side chain derivative. The reverse turn mimetic compound may be present as an isolated stereoisomer or a mixture of stereoisomers or as a pharmaceutically acceptable salt thereof.

In certain embodiments, R₁ of compounds of Formula (I) is phenyl, substituted phenyl, pyridinyl, substituted pyridinyl, pyrimidinyl, substituted pyrimidinyl, indolyl, substituted indolyl, benzothiazolyl, substituted benzothiazolyl, benzimidazolyl, substituted benzimidazolyl, benzothiophenyl, substituted benzothiophenyl, benzodioxolyl, substituted benzodioxolyl, benzoxazolyl, substituted benzoxazolyl, benzisoxazolyl, substituted benzisoxazolyl, chromonyl, substituted chromonyl, tetrahydro-carbazolyl, substituted tetrahydro-carbazolyl, benzyl or substituted benzyl, aminocarbonylC₁₋₆alkyl, C₁₋₃alkylthiazolyl-aminocarbonylC₁₋₆alkyl, dibenzofuranyl, acetylenyl, or styrenyl.

Specific examples of R₁, R₂, R₃, R₄ and R₅ are provided in the following detailed description.

In an embodiment wherein E is CHR₃, the compounds of this invention have the following Formula (II):

wherein W is as defined above, and R₁, R₂, R₃, R₄ and R₅ are as defined in the following detailed description.

In certain embodiments, the compounds of this invention have the following general Formula (III):

wherein R₁, R₄, R₆, X₁, X₂, and X₃ are defined in the following detailed description.

The present invention is also related to prodrugs using the libraries containing one or more compounds of Formula (I). A prodrug is typically designed to release the active drug in the body during or after absorption by enzymatic and/or chemical hydrolysis. The prodrug approach is an effective means of improving the oral bioavailability or i.v. administration of poorly water-soluble drugs by chemical derivatization to more water-soluble compounds. The most commonly used prodrug approach for increasing aqueous solubility of drugs containing a hydroxyl group is to produce esters containing an ionizable group; e.g., phosphate group, carboxylate group, alkylamino group (Fleisher et al., Advanced Drug Delivery Reviews, 115-130, 1996; Davis et al., Cancer Res., 7247-7253, 2002, Golik et al., Bioorg. Med. Chem. Lett., 1837-1842, 1996).

Examples of the functional group which may be released in the body may include phosphate,

but any other functional groups that are conventionally used as the ionizable group in a prodrug can be used.

In certain embodiments, the prodrugs of the present invention have the following general Formula (IV): (III)-R₇  (IV) wherein (III) is Formula (III) as described above; one of R₁, R₄, R₆, X₁, X₂, and X₃ is linked to R₇ via Y; Y is an oxygen, sulfur, or nitrogen in R₁, R₄, or R₆, or an oxygen in X₁, X₂, or X₃; and R₇ is hydroxyalkyl, glycosyl, phosphoryloxymethyloxycarbonyl, substituted or unsubstituted piperidine carbonyloxy, or a salt thereof; or Y—R₇ is an amino acid residue, a combination of amino acid residues, phosphate, hemimalate, hemisuccinate, dimethylaminoalkylcarbamate, dimethylaminoacetate, or a salt thereof; and when not linked to R₇: R₁, R₄, R₆, X₁, X₂, and X₃ are defined in the following detailed description.

In certain embodiments, the prodrugs of the present invention are capable of serving as a substrate for a phosphatase, a carboxylase, or other enzymes and are thereby converted to compounds having general Formula (III). The present invention is also directed to libraries containing one or more compounds of Formula (I) above, as well as methods for synthesizing such libraries and methods for screening the same to identify biologically active compounds.

In a related aspect, the present invention further provides novel compounds which have less CYP3A4 inhibitory activity. The present invention also provides novel compounds which have inhibition activity against Wnt signaling. The present invention also provides novel compounds which can be used for the preparation of a medicament for a treatment or a prevention of acute myeloid leukemia.

Advantageous Effects

The present invention provides novel compounds of reverse-turn mimetics. The compounds of the present invention exhibit less CYP3A4 inhibitory activity (higher IC50) which allows the compounds as potential pharmaceuticals, especially when it is to be administered in combination with other drugs. The compounds of the present invention showed strong inhibition activity against Wnt signaling. The compounds inhibited the growth of AML cancer cells and it can be used in the treatment or prevention of an acute myeloid leukemia.

BRIEF DESCRIPTION OF THE DRAWING

Reference will now be made in detail to the preferred embodiment of the present invention, examples of which are illustrated in the drawings attached herein. The embodiments are described below so as to explain the present invention by referring to the figures.

FIG. 1 provides a general synthetic scheme for preparing revers-turn mimetics of the present invention.

FIGS. 2A to 2E show an effect of test compounds (Compounds A˜E) on the CYP3A4 activity. The graph is based on the measurement of IC₅₀ for Compounds A˜E of the present invention of CYP3A4 inhibition assay, wherein inhibition of activity of CYP3A4 was measured at various concentrations of the compound to obtain the IC₅₀ value. Detailed procedures are disclosed in Example 1.

FIG. 3 shows the results of the measurement of IC₅₀ of Compound F for SW480 cells on TopFlash Reporter Gene Bioassay.

FIG. 4 shows inhibition of growth of AML cancer cells by the test compound according to the concentration of the test compound (Compound B).

BEST MODE FOR CARRYING OUT THE INVENTION

As used in the specification and appended claims, unless specified to the contrary, the following terms have the meaning indicated:

“Amino” refers to the —NH₂ radical.

“Amidino” refers to the —C(═NH)—NH₂ radical. One or both hydrogens of the amine group of the amidino may be replaced with one or two alkyl groups, as defined herein. The alkyl-derivatized amidino radicals are also referred to as “alkylamidino” and “dialkylamidino,” respectively.

“Cyano” refers to the —CN radical.

“Carboxy” refers to the —COOR radical, wherein R is hydrogen or alkyl, as defined herein.

“Acyl” refers to the —COR radical, wherein R is alkyl, aryl, cycloalkyl, heterocyclyl, as defined herein. For example, R can be methyl, butenyl, cyclopropyl, and the like. The alkyl or aryl can be optionally substituted with the substituents as described for an alkyl or an aryl group, respectively. Exemplary acyl groups include, without limitation, phenylacyl, benzylacyl, C₁₋₆acyl (e.g., acetyl) and the like.

“Alkylsulfonate” refers to —S(O)₂—OR radical, wherein R is alkyl, as defined herein.

“Amidosulfonate” refers to the radical —OS(O)₂—NR₂, each R is independently hydrogen or alkyl. Exemplary amidosulfonates include —OS(O)₂NH₂, —OS(O)₂NHMe.

“Aminocarbonyl” refers to the radical —C(O)NR₂, each R is independently hydrogen, alkyl, amino, cycloalkylalkyl, heterocyclyl, alkoxyalkyl, hydroxyalkyl, hydroxyl, alkoxy, arylalkyl, heterocyclylalkyl, or two R is together with the nitrogen atom to which they are attached form a heterocyclyl, as defined herein. When one of the R is hydrogen, the other R is C1-4alkyl, aminocarbonyl can be represented by “C₁₋₄alkylformamidyl.”

“N-formamidyl” refers to the radical —NHC(O)H.

“Phenylsulfonyl” refers to the —S(O)₂—R radical, wherein R is phenyl, the phenyl can be further substituted with alkyl or chloro.

“Phenylsulfonate” refers to the —O—S(O)₂—R radical, wherein R is phenyl, the phenyl can be further substituted with alkyl or chloro.

“Alkylsulfonyl” refers to the —S(O)₂—R radical, wherein R is alkyl, as defined herein. Exemplary alkylsulfonyl radicals include methylsulfonyl.

“Alkylthio” refers to the —SR radical wherein R is alkyl, as defined herein.

“Arylthio” refers to the —SR radical wherein R is aryl, as defined herein. The aryl group of the arylthio can be further substituted with alkyl or chloro.

“Aryloxy” refers to the —OR radical wherein R is aryl, as defined herein. The aryl group can be further substituted with alkyl, alkoxy and the like.

“Acyloxyalkyl” refers to the —R′—OC(O)—R radical, wherein R is alkyl, aryl, cycloalkyl, heterocyclyl, as defined herein; and R′ is an alkyl.

“Guanidino” refers to the —NH—C(═NH)—NH₂ radical. One or both hydrogens of the amine group of the guanidino may be replaced with one or two alkyl groups, as defined herein. The alkyl-derivatized guanidine radicals are also referred to as “alkylguanidino” and “dialkylguanidino,” respectively.

“Nitro” refers to the —NO₂ radical.

“Alkyl” refers to a straight or branched hydrocarbon chain radical consisting solely of carbon and hydrogen atoms. An alkyl may be saturated (containing carbons linked together by single bonds only) or unsaturated (containing carbons linked together by at least one double bond or triple bond.) An alkyl having one to twelve carbon atoms is also referred to as “lower chain alkyl moieties” and can be presented by “C₁₋₁₂alkyl.” In other embodiments, an alkyl may comprise one to four carbon atoms and be represented by “C₁₋₄alkyl.” In other embodiments, an alkyl may comprise two to five carbon atoms and be represented by “C₂₋₅alkyl.” An alkyl is attached to the rest of the molecule by a single bond. Examples of saturated alkyls include, without limitation, methyl, ethyl, n-propyl, 1-methylethyl (iso-propyl), n-butyl, n-pentyl, 1,1-dimethylethyl (t-butyl), 3-methylhexyl, 2-methylhexyl, and the like. Examples of unsaturated alkyls include, without limitation, ethenyl (i.e., vinyl), prop-1-enyl (i.e., allyl), but-1-enyl, pent-1-enyl, penta-1,4-dienyl, ethynyl (i.e., acytylenyl), prop-1-ynyl and the like.

An alkyl may also be a monocyclic or bicyclic hydrocarbon ring radical, which may include fused or bridged ring systems. A cyclic alkyl is also referred to as “cycloalkyl.” In certain embodiments, a cycloalkyl may comprise three to six carbon atoms and be represented by “C₃₋₆cycloalkyl.” Examples of monocyclic cycloalkyl radicals include, e.g., cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and cyclooctyl. An unsaturated cycloalkyl contains an endo double bond (i.e., a double bond in the ring). Examples of an unsaturated cycloalkyl include cyclohexenyl. Examples of bicyclic cycloalkyl radicals include, for example, norbornyl (i.e., bicyclo[2.2.1]heptyl), 7,7-dimethyl-bicyclo[2.2.1]heptyl, and the like.

Unless stated otherwise specifically in the specification, the term “alkyl” is meant to include both alkyl and “substituted alkyl,” which refers to an alkyl radical in which one or more hydrogen atoms are replaced by one or more substituents independently selected from: acyl, amidino, alkylamidino, dialkylamidino, alkoxy, aryl, cyano, cycloalkyl, guanidino, alkylguanidino, dialkylguanidino, halo, heterocyclyl, hydrazinyl, hydroxyl, nitro, —OC(O)—R¹¹, —C(O)OR¹¹, —C(O)N(R¹¹)₂, —N(R¹¹)C(O)OR¹¹, —N(R¹¹)C(O)R¹¹, —N(R¹¹)S(O)_(t)R¹¹ (where t is 1 or 2), —S(O)_(t)OR¹¹ (where t is 1 or 2), —S(O)_(p)R¹¹ (where p is 0, 1 or 2), and —S(O)_(t)N(R¹¹)₂ (where t is 1 or 2) where each R¹¹ is independently hydrogen, alkyl, aryl, arylalkyl, heterocyclyl or heterocyclylalkyl, as defined herein.

“Alkoxy” refers to a radical represented by the formula alkyl-O—, wherein alkyl is as defined herein. The alkyl portion can be further substituted by one or more halogen. An alkoxy may also be represented by the number of the carbons in the alkyl group, for example, C₁₋₆alkoxy or C₁₋₃alkoxy.

“Aryl” refers to a radical derived from an aromatic monocyclic or bicyclic ring system by removing a hydrogen atom from a ring carbon atom. The aromatic monocyclic or bicyclic hydrocarbon ring system comprises six to twelve carbon atoms (i.e., C₆₋₁₂aryl), wherein at least one of the rings in the ring system is fully unsaturated, i.e., it contains a cyclic, delocalized (4n+2) π-electron system in accordance with the Hückel theory. Optionally, one or two ring atoms of the aryl may be heteroatoms selected from nitrogen, oxygen or sulfur. Examples of aryl radicals include, but are not limited to, phenyl and naphthyl. Unless stated otherwise specifically in the specification, the term “aryl” is meant to include both aryl and “substituted aryl,” which refers to an aryl radical in which one or more hydrogen atoms are replaced by one or more substituents independently selected from: alkyl, acyl, amidino, amidosulfonate, alkoxy, aryloxy, cyano, guanidino, alkylguanidino, dialkylguanidino, halo, hydrazinyl, hydroxyl, nitro,

heterocyclyl, —OC(O)—R¹¹, —N(R¹¹)₂, —C(O)OR¹¹, —C(O)N(R¹¹)₂, —N(R¹¹)C(O)OR¹¹, —N(R¹¹)C(O)R¹¹, —N(R¹¹)S(O)_(t)R¹¹ (where t is 1 or 2), —S(O)_(t)OR¹¹ (where t is 1 or 2), —S(O)_(p)R¹¹ (where p is 0, 1 or 2), and —S(O)_(t)N(R¹¹)₂ (where t is 1 or 2) where each R¹¹ is independently hydrogen, alkyl, aryl, arylalkyl, heterocyclyl or heterocyclylalkyl.

“Arylalkyl” refers to an alkyl radical wherein one or more hydrogens of the alkyl are replaced with one or more aryl groups, as defined herein. In various embodiments, arylalkyls include from 7 to 15 carbons and can be represented by C₇₋₁₅arylalkyl. In certain embodiments, arylalkyl is arylC₁₋₄alkyl wherein a C₁₋₄alkyl is substituted with one aryl or two aryl groups, the latter being also referred to as “diarylalkyl” or “bisarylalkyl”. Examples of arylC₁₋₄alkyl include, but are not limited to arylmethyl, arylethyl, arylpropyl, arylbutyl, bisarylmethyl, bisarylethyl, bisarylpropyl, bisarylbutyl. Exemplary arylalkyl radicals include, without limitation, benzyl, naphthylmethyl, diphenylmethyl, 3,3-bisphenylpropyl and the like. Unless stated otherwise specifically in the specification, the term “arylalkyl” is meant to include both arylalkyl and “substituted arylalkyl,” wherein the alkyl part and/or the aryl part of the arylalkyl radical may be substituted as described herein for the alkyl radical and aryl radical, respectively.

“Cycloalkylalkyl” refers to an alkyl radical wherein one or more hydrogens of the alkyl are replaced with one or more c groups, as defined herein. In certain embodiments, cycloalkylalkyl is cycloalkylC₁₋₂alkyl such as cycloalkylmethyl, cycloalkylethyl and the like. Exemplary cycloalkylalkyl radicals include, without limitation, cyclohexylalkyl (e.g., cyclohexylmethyl and cyclohexylethyl), and cyclopentylalkyl (e.g., cyclopentylmethyl and cyclopentylethyl) and the like. Unless stated otherwise specifically in the specification, the term “cycloalkylalkyl” is meant to include both cycloalkylalkyl and “substituted cycloalkylalkyl,” wherein the alkyl part and/or the cycloalkyl part of the cycloalkylalkyl radical may be substituted as described herein for the alkyl radical and cycloalkyl radical, respectively.

“Glycosyl” refers to a radical by removing the hemiacetal hydroxyl group from a cyclic form of a monosaccharide (e.g., glucose), disaccharide, oligosaccharide (comprising three to ten monosaccharides), or polysaccharide (comprising more than ten monosaccharides).

“Halo” or “halogen” refers to fluoro, chloro, bromo or iodo radicals.

“Haloalkyl” refers to an alkyl radical, as defined herein, which is substituted by one or more halo radicals, as defined herein. Exemplary haloalkyls include, without limitation: trifluoromethyl, difluoromethyl, trichloromethyl, 2,2,2-trifluoroethyl, 1-fluoromethyl-2-fluoroethyl, 3-bromo-2-fluoropropyl, 1-bromomethyl-2-bromoethyl, and the like. An alkyl substituted with one or more fluoro is also referred to as “perfluoroalkyl,” for example, “perfluoC₁₋₄alkyl.” The alkyl part of the haloalkyl radical may be optionally substituted as defined herein for an alkyl group.

“Heterocyclyl” refers to a stable heterocyclic ring radical that comprises two to eleven carbon atoms and from one to three heteroatoms selected from nitrogen, oxygen and sulfur. In certain embodiments, the heterocyclyl contains one or two heteroatoms. Unless stated otherwise specifically in the specification, the heterocyclyl radical may be a monocyclic or bicyclic ring system, which may include fused or bridged ring systems. In certain embodiments, the heterocyclyl may be a 5-, 6- or 7-membered monocyclic ring. In other embodiments, the heterocyclyl may be an 8-, 9-, 10-, 11- or 12-membered fused bicyclic ring. The heteroatoms in the heterocyclyl radical may be optionally oxidized. One or more nitrogen atoms, if present, may be optionally quaternized. The heterocyclyl radical may be non-aromatic or aromatic (i.e., at least one ring in the heterocyclyl radical has a delocalized (4n+2) π-electron system in accordance with the Hückel theory.) The heterocyclyl may be attached to the rest of the molecule through any atom of the ring(s). Examples of non-aromatic heterocyclyl radicals include, but are not limited to, dioxolanyl, decahydroisoquinolyl, imidazolinyl, imidazolidinyl, isothiazolidinyl, isoxazolidinyl, morpholinyl, octahydroindolyl, octahydroisoindolyl, 2-oxopiperazinyl, 2-oxopiperidinyl, 2-oxopyrrolidinyl, oxazolidinyl, piperidinyl (also referred to as “piperidyl”), piperazinyl, 4-piperidonyl, 3-pyrrolinyl, pyrrolidinyl, pyrazolidinyl, quinuclidinyl, thiazolidinyl, tetrahydrofuryl, trithianyl, tetrahydropyranyl, thiomorpholinyl, and thiamorpholinyl. Examples of aromatic heterocyclyl radicals include, but are not limited to, azepinyl, acridinyl, benzimidazolyl, benzindolyl, 1,3-benzodioxolyl, benzofuranyl, benzooxazolyl, benzoisoxazolyl, benzo[d]thiazolyl, benzothiadiazolyl, benzo[b][1,4]dioxepinyl, benzo[b][1,4]oxazinyl, 1,4-benzodioxanyl, benzoxazolyl, benzodioxolyl, benzodioxinyl, benzopyranyl, benzopyrazolyl, benzofuranyl, benzofuranonyl, benzothienyl (benzothiophenyl), benzothieno[3,2-d]pyrimidinyl, benzotriazolyl, carbazolyl, chromone, cinnolinyl, cyclopenta[d]pyrimidinyl, dibenzofuranyl, dibenzothiophenyl, furanyl, furanonyl, furo[3,2-c]pyridinyl, isothiazolyl, imidazolyl, indazolyl, indolyl, indazolyl, isoindolyl, indolinyl, isoindolinyl, isoquinolyl, indolizinyl, isoxazolyl, 5,8-methano-5,6,7,8-tetrahydroquinazolinyl, naphthyridinyl, 1,6-naphthyridinonyl, oxadiazolyl, 2-oxoazepinyl, oxazolyl, oxiranyl, 5,6,6a,7,8,9,10,10a-octahydrobenzo[h]quinazolinyl, phenazinyl, phenothiazinyl, phenoxazinyl, phthalazinyl, pteridinyl, purinyl, pyrrolyl, pyrazolyl, pyrazolo[3,4-d]pyrimidinyl, pyridinyl (also referred to as pyridyl), pyrido[3,2-d]pyrimidinyl, pyrido[3,4-d]pyrimidinyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyrrolyl, quinazolinyl, quinoxalinyl, quinolinyl, isoquinolinyl, tetrahydroquinolinyl, 1,2,3,4-tetrahydrocarbazolyl, 5,6,7,8-tetrahydroquinazolinyl, thiazolyl, thiadiazolyl, triazolyl, tetrazolyl, triazin-2-yl, thieno[2,3-d]pyrimidinyl, thieno[3,2-c]pyrimidinyl, thieno[2,3-c]pridinyl, and thiophenyl (i.e. thienyl). Unless stated otherwise specifically in the specification, the twin “heterocyclyl” is meant to include both heterocyclyl and “substituted heterocyclyl,” which refers to a heterocyclyl radical substituted by one or more substituents selected from alkyl, acyl, oxo (e.g., pyridinonyl, pyrrolidonyl), aryl, arylalkyl, acyloxyalkyl, amidino, alkoxy, cyano, guanidino, alkylguanidino, dialkylguanidino, halo, hydrazinyl, hydroxyl, nitro, —OC(O)—R¹¹, —N(R¹¹)₂, —C(O)OR¹¹, —C(O)N(R¹¹)₂, —N(R¹¹)C(O)OR¹¹, —N(R¹¹)C(O)R¹¹, —N(R¹¹)S(O)_(t)R¹¹ (where t is 1 or 2), —S(O)_(t)OR¹¹ (where t is 1 or 2), —S(O)_(p)R¹¹ (where p is 0, 1 or 2), and —S(O)_(t)N(R¹¹)₂ (where t is 1 or 2) where each R¹¹ is independently hydrogen, alkyl, aryl, arylalkyl, heterocyclyl or heterocyclylalkyl.

“Heterocyclylalkyl” refers to an alkyl radical wherein one or more hydrogens of the alkyl are replaced with one or more heterocyclyl groups, as defined herein. If the heterocyclyl is a nitrogen-containing heterocyclyl, the heterocyclyl may be attached to the alkyl radical at the nitrogen atom. In certain embodiments, the alkyl part of the heterocyclylalkyl contains 1-4 carbon atoms and can be represented by heterocyclylC₁₋₄alkyl. Examples of heterocyclylalkyl radicals include, without limitation, morpholinylalkyl such as morpholinylmethyl, piperidylalkyl such as piperidylmethyl, imidazolidinylalkyl such as imidazolidinylmethyl and the like. Additional examples of heterocyclylalkyl radicals, wherein the heterocyclyl part is aromatic, include, but are not limited to: pyridylmethyl, pyridylethyl, pyridylpropyl, pyridylbutyl, quinolinylmethyl, quinolinylethyl, quinolinylpropyl, quinolinylbutyl, indazolylmethyl, indazolylethyl, indazolylpropyl, indazolylbutyl, benzpyrazolylmethyl, benzpyrazolylethyl, benzpyrazolylpropyl, benzpyrazolylbutyl, isoquinolinylmethyl, isoquinolinylethyl, isoquinolinylpropyl, iso quinolinylbutyl, benzotriazolylmethyl, benzotriazolylethyl, benzotriazolylpropyl, benzotriazolylbutyl and the like. Unless stated otherwise specifically in the specification, the term “heterocyclylalkyl” is meant to include both heterocyclylalkyl and “substituted heterocyclylalkyl,” wherein the alkyl part and/or the heterocyclyl part of the heterocyclylalkyl radical may be substituted as described herein for the alkyl radical and the heterocyclyl radical, respectively.

The compounds, or their pharmaceutically acceptable salts may contain one or more asymmetric centers and may thus give rise to enantiomers, diastereomers, and other stereoisomeric forms that may be defined, in terms of absolute stereochemistry, as (R)- or (S)- or, as (D)- or (L)- for amino acids. When the compounds described herein contain olefinic double bonds or other centers of geometric asymmetry, and unless specified otherwise, it is intended that the compounds include both E and Z geometric isomers (e.g., ds or trans.) Likewise, all possible isomers, as well as their racemic and optically pure forms, and all tautomeric forms are also intended to be included.

As used herein, “amino acid” is meant to include naturally occurring α-amino acids and/or unnatural amino acids, such as β-amino acids and homoamino acids. Examples of the amino acids include, but are not limited to: alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, phosphoserine, phosphothreonine, phosphotyrosine, 4-hydroxyproline, hydroxylysine, demosine, isodemosine, gamma-carboxyglutamate, hippuric acid, octahydroindole-2-carboxylic acid, statine, 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, penicillamine, ornithine, 3-methylhistidine, norvaline, beta-alanine, gamma-aminobutylic acid, cirtulline, homocysteine, homoserine, methyl-alanine, para-benzoylphenylalanine, phenylglycine, propargylglycine, sarcosine, methionine sulfone, tort-butylglycine, 3,5-dibromotyrosine and 3,5-diiodotyrosine.

“Amino acid residue” or “amino acid side chain moiety” refers to the portion of an amino acid that remains after losing a water molecule (or alcohol) when the amino acid is condensed with a molecule. Typically, an amino acid is condensed with a molecule, including a compound of any of Formulae (I)-(IV), by forming a peptide bond. In certain embodiments, the amino functional group of the amino acid can be condensed with a carboxylic acid group or its reactive equivalent (e.g., carboxylic anhydride) of the molecule. In other embodiments, the carboxylic acid functional group of the amino acid can be condensed with an amine group of the molecule. Typically, a molecule of water is lost during the formation of the peptide bond. Examples of the “amino acid residues” or “amino acid side chain moiety” include, but are not limited to, residues of alanine, arginine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, phosphoserine, phosphothreonine, phosphotyrosine, 4-hydroxyproline, hydroxylysine, demosine, isodemosine, gamma-carboxyglutamate, hippuric acid, octahydroindole-2-carboxylic acid, statine, 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, penicillamine, ornithine, 3-methylhistidine, norvaline, beta-alanine, gamma-aminobutylic acid, cirtulline, homocysteine, homoserine, methyl-alanine, para-benzoylphenylalanine, phenylglycine, propargylglycine, sarcosine, methionine sulfone, tert-butylglycine, 3,5-dibromotyrosine, 3,5-diiodotyrosine, glycosylated threonine, glycosylated serine, and glycosylated asparagine.

An “amino acid side chain derivative” refers to a derivative of any of the amino acid side chain moiety as described in Table 1. In certain embodiments, the amino acid side chain derivative is alkyl, acyl, alkoxy, aryl, arylalkyl, heterocyclyl, or heterocyclylalkyl, as defined herein.

TABLE 1 Amino Acid Side Chain Moiety Amino Acid —H Glycine —CH₃ Alanine —CH(CH₃)₂ Valine —CH₂CH(CH₃)₂ Leucine —CH(CH₃)CH₂CH₃ Isoleucine —(CH₂)₄NH₃ ⁺ Lysine —(CH₂)₃NHC(NH₂)NH₂ ⁺ Arginine

Histidine —CH₂COO⁻ Aspartic acid —CH₂CH₂COO⁻ Glutamic acid —CH₂CONH₂ Asparagine —CH₂CH₂CONH₂ Glutamine

Phenylalanine

Tyrosine

Tryptophan —CH₂SH Cysteine —CH₂CH₂SCH₃ Methionine —CH₂OH Serine —CH(OH)CH₃ Threonine

Proline

Hydroxyproline

A “stereoisomer” refers to a compound made up of the same atoms bonded by the same bonds but having different three-dimensional structures, which are not interchangeable. It is therefore contemplated that various stereoisomers and mixtures thereof and includes “enantiomers,” which refers to two stereoisomers whose molecules are nonsuperimposeable mirror images of one another.

A “tautomer” refers to a proton shift from one atom of a molecule to another atom of the same molecule.

“Prodrugs” is meant to indicate a compound that may be converted under physiological conditions or by solvolysis to a biologically active compound described herein. Thus, the term “prodrug” refers to a precursor of a biologically active compound that is pharmaceutically acceptable. A prodrug may be inactive when administered to a subject, but is converted in vivo to an active compound, for example, by hydrolysis. The prodrug compound often offers advantages of solubility, tissue compatibility or delayed release in a mammalian organism (see, Bundgard, H., Design of Prodrugs (1985), pp. 7-9, 21-24 (Elsevier, Amsterdam).

A discussion of prodrugs is provided in Higuchi, T., et al., “Pro-drugs as Novel Delivery Systems,” A. C. S. Symposium Series, Vol. 14, and in Bioreversible Carriers in Drug Design, ed. Edward B. Roche, American Pharmaceutical Association and Pergamon Press, 1987, both of which are incorporated in full by reference herein.

The term “prodrug” is also meant to include any covalently bonded carriers, which release the active compound in vivo when such prodrug is administered to a mammalian subject. Prodrugs of an active compound, as described herein, may be prepared by modifying functional groups present in the active compound in such a way that the modifications are cleaved, either in routine manipulation or in vivo, to the parent active compound. Prodrugs include compounds wherein a hydroxyl, amino or mercapto group is bonded to any group that, when the prodrug of the active compound is administered to a mammalian subject, cleaves to form a free hydroxyl, free amino or free mercapto group, respectively. Examples of the prodrugs include, but are not limited to, acetate, succinate, phosphate, hemisuccinate, malate, hemimalate, formate and benzoate derivatives of alcohol or amine functional groups in the active compounds and the like. Other examples of the prodrugs include, but are not limited to, amino acid derivatives of alcohol or amine functional groups in the active compounds and the like.

The present invention is directed to conformationally constrained compounds that mimic the secondary structure of reverse-turn regions of biological peptide and proteins (also referred to herein as “reverse-turn mimetics,” and is also directed to chemical libraries relating thereto.

The reverse-turn mimetic structures of the present invention are useful as bioactive agents, including (but not limited to) use as diagnostic, prophylactic and/or therapeutic agents. The reverse-turn mimetic structure libraries of this invention are useful in the identification of bioactive agents having such uses. In the practice of the present invention, the libraries may contain from tens to hundreds to thousands (or greater) of individual reverse-turn structures (also referred to herein as “members”).

In one aspect of the present invention, a reverse-turn mimetic structure is disclosed having the following Formula (I):

wherein E is —ZR₃— or —(C═O)—, wherein Z is CH or N; W is —(C═O)—, —(C═O)NH—, —(C═O)O—, —(C═O)S—, —S(O)₂— or a bond; and each of R₁, R₂, R₃, R₄ and R₅ is the same or different and independently an amino acid side chain moiety or an amino acid side chain derivative. The reverse turn mimetic compound may be present as an isolated stereoisomer or a mixture of stereoisomers or as a pharmaceutically acceptable salt thereof.

In certain embodiments, R₁ of compounds of Formula (I) is phenyl, substituted phenyl, pyridinyl, substituted pyridinyl, pyrimidinyl, substituted pyrimidinyl, indolyl, substituted indolyl, benzothiazolyl, substituted benzothiazolyl, benzimidazolyl, substituted benzimidazolyl, benzothiophenyl, substituted benzothiophenyl, benzodioxolyl, substituted benzodioxolyl, benzoxazolyl, substituted benzoxazolyl, benzisoxazolyl, substituted benzisoxazolyl, chromonyl, substituted chromonyl, tetrahydro-carbazolyl, substituted tetrahydro-carbazolyl, benzyl or substituted benzyl, aminocarbonylC₁₋₆alkyl, C₁₋₃alkylthiazolyl-aminocarbonylC₁₋₆alkyl, dibenzofuranyl, acetylenyl, or styrenyl.

In certain embodiments, R₁ of compounds of Formula (I) may be:

substituted phenyl having one or more substituents independently selected from: halogen, nitro, cyano, hydroxyl, C₁₋₁₂alkoxy, substituted C₁₋₁₂alkoxy, C₁₋₁₂alkyl, carbonyl, carboxy, acetyl, C₁₋₁₂alkylthio, C₆₋₁₂arylthio, thiophenyl, sulfonyl, C₆₋₁₂aryloxy, substituted C₆₋₁₂aryloxy, indanyloxy, amino, aldoaminoC₁₋₁₂alkylbenzylamino, amide, C₁₋₁₂alkyl-sulfonic acid, C₁₋₁₂alkyl phosphoric acid, phenyl, substituted phenyl, pyrrolidinyl, piperazinyl, pyridinyl, substituted pyridinyl, tetrazolyl, thiazolyl, pyridinone, phosphatemethyl, and imidazolyl;

substituted pyridinyl having one or more substituents independently selected from: halogen, cycloalkyl, phenyl, substituted phenyl, pyrrolidinyl-piperidinyl, pyridinyl, C₁₋₁₂alkyl, carbonyl, amide, and carboxy;

substituted pyrimidinyl having one or more substituents independently selected from phenyl and amino;

substituted indolyl having one or more substituents independently selected from: phenyl, substituted phenyl, substituted benzyl, pyridinyl, sulfonyl, acetyl, acyl, carbonyl, C₁₋₁₂alkyl, acyloxy C₁₋₁₂alkyl, C₁₋₁₂alkoxy, halogen, monoxide, and cyano;

substituted benzothiazolyl having one or more substituents independently selected from: halogen, and phosphate disodium amino;

substituted benzimidazolyl having one or more substituents independently selected from: carbonyl, monoxide, thio, perfluoroC₁₋₄alkyl, cyanoC₁₋₄alkyl, and C₁₋₁₂alkyl;

substituted benzothiophenyl having one or more substituents independently selected from: nitro, amino, C₁₋₄alkylamino, bisbenzylamino, amide, halogen, benzylamino, sulfonyl, dioxo, aldoamino, and carbonyl;

substituted benzodioxolyl having one or more substituents independently selected from: nitro and halogen;

substituted benzoxazolyl having one or more substituents independently selected from: monoxide, and thio;

substituted benzisoxazolyl having one or more substituents independently selected from: amino;

substituted chromonyl having one or more substituents independently selected from: phenyl; or

substituted tetrahydro-carbazolyl having one or more substituents independently selected from: sulfonyl.

In certain embodiment of the compounds described in the preceding paragraph, substituted phenyl is halo-phenyl, cyano phenyl, C₁₋₁₂alkoxy phenyl, hydroxy phenyl, carboxy phenyl, acetamide phenyl, aminocarbonyl phenyl, amino phenyl, alkylsulfonyl phenyl, or alkylthio phenyl;

substituted benzyl is nitro-benzyl, or amino-benzyl;

amide group is C₁₋₆alkylamide, carbamide, C₁₋₆alkycarbamide, C₁₋₆alkylcarbamate, C₁₋₆alkylalkoxycarbamate, formamide, C₁₋₆alkylformamide, carbamoylurea, or acetamide;

carbonyl group is cycloalkylcarbonyl, C₁₋₁₂alkoxycarbonyl, morpholinylcarbonyl, aminocarbonyl, C₁₋₁₂alkylaminocarbonyl, di C₁₋₁₂alkylaminocarbonyl, C₁₋₁₂alkynylaminocarbonyl, C₂₋₁₃alkoxyalkylaminocarbonyl thiophenyl C₁₋₁₂alkylaminocarbonyl, benzylaminocarbonyl, dihydropyrrolylcarbonyl, cycloalkyl C₁₋₁₂alkylcarbonyl, cycloalkenyl C₁₋₁₂alkylcarbonyl, C₂₋₁₃alkoxyalkylcarbonyl, imidazolylaminocarbonyl, piperidinylcarbonyl, pyrrolidinylcarbonyl, alkoxyaminocarbonyl, hydroxyaminocarbonyl, hydroC₁₋₁₂alkylaminocarbonyl, hydrazinylcarbonyl, C₁₋₁₂alkylformatehydrazinylcarbonyl, or tetrahydrofuranylC₁₋₁₂alkylaminocarbonyl;

sulfonyl group is tosyl, phenyl sulfonyl, C₁₋₁₂alkyl sulfonyl, C₁₋₁₂alkylsulfonylamino, aminosulfonylamino or halo-phenyl sulfonyl;

substituted alkoxy is morpholinyl C₁₋₁₂alkoxy, dihalo-C₁₋₁₂alkoxy, or piperazinyl C₁₋₁₂alkoxy;

substituted aryloxy is halo-C₆₋₁₂aryloxy;

substituted pyridinyl is halo-pyridinyl, C₁₋₁₂alkoxy pyridinyl, amino pyridinyl, or morpholinyl pyridinyl; or

substituted tetrahydro-carbazolyl is phenylsulfonyl-6,7,8,9-tetrahydro-5H-carbazolyl.

In certain embodiments, R₂, R₄ and R₅ of compounds of Formula (I) are independently selected from the group consisting of

C₁₋₁₂alkyl or substituted C₁₋₁₂alkyl having one or more substituents independently selected from: halogen, cyano, C₁₋₆alkoxy, amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, aminocarbonyl, morpholinyl, methyl-piperazinyl, phenyl and hydroxyl;

C₂₋₁₂alkenyl or substituted C₂₋₁₂alkenyl having one or more substituents independently selected from: amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₆₋₁₂aryl or substituted C₆₋₁₂aryl having one or more substituents independently selected from: halogen, amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₁₋₆alkoxy, diC₁₋₅alkylamino; C₆₋₁₃heterocyclylalkyl, which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur, or substituted C₆₋₁₃heterocyclylalkyl which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur and has one or more substituents independently selected from: halogen, C₁₋₆alkyl, C₁₋₆alkoxy, cyano, amino, amide, monoxide, thio, and hydroxyl; and

C₇₋₁₃arylalkyl or substituted C₇₋₁₃arylalkyl having one or more substituents independently selected from: amino, amidino, amide, hydroxyC₁₋₄alkyl, dihydroxyC₁₋₄alkyl, urea, thiourea, ureaC₁₋₄alkyl, carbamoylurea, carbonyl, carbonylamino, aminosulfo, amidesulfo, acetylenyl, allyl, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₆alkyl, C₁₋₆alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl; and

R₃ is selected from the group consisting of:

hydrogen;

C₁₋₁₂alkyl or substituted C₁₋₁₂alkyl having one or more substituents independently selected from: halogen, cyano, C₁₋₆alkoxy, amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₂₋₁₂alkenyl or substituted C₂₋₁₂alkenyl having one or more substituents independently selected from: amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₆₋₁₂aryl or substituted C₆₋₁₂aryl having one or more substituents independently selected from: halogen, amino, guanidino, C₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₁₋₆alkoxy;

C₆₋₁₃heterocyclylalkyl, which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur, or substituted C₆₋₁₃heterocyclylalkyl which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur and has one or more substituents independently selected from: halogen, C₁₋₆alkyl, C₁₋₆alkoxy, cyano, and hydroxyl; and

C₇₋₁₃arylalkyl or substituted C₇₋₁₃arylalkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₆alkyl, C₁₋₆alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl.

In certain embodiments, R₂, R₄ and R₅ of compounds of Formula (I) are independently selected from the group consisting of:

aminoC₂₋₅alkyl; guanidinoC₂₋₅alkyl; C₁₋₄alkylguanidinoC₂₋₅alkyl, diC₁₋₄alkylguanidino-C₂₋₅alkyl; amidinoC₂₋₅alkyl; C₁₋₄alkylamidinoC₂₋₅alkyl; diC₁₋₄alkylamidinoC₂₋₅alkyl; C₁₋₃alkoxy;

C₁₋₁₂alkyl; C₆₋₁₂aryl; C₆₋₁₂arylalkyl; C₂₋₁₂alkenyl;

phenyl or substituted phenyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoroC₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

naphthyl or substituted naphthyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoroC₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, and hydroxyl;

benzyl or substituted benzyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, C₁₋₄alkyl, carbonyl, aminoC₁₋₄alkyl, acetylenyl, sulfuryl and hydroxyl;

bisphenylmethyl or substituted bisphenylmethyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄ dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl; pyridinyl or substituted pyridinyl having one or more substituents independently selected from: amino, amide, monoxide, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

pyridinylC₁₋₄alkyl, or substituted pyridinylC₁₋₄alkyl having one or more substituents independently selected from: amino, amide, monoxide, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

pyrimidinylC₁₋₄alkyl, or substituted pyrimidinylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, monoxide, amide, and hydroxyl;

triazin-2-ylC₁₋₄alkyl, or substituted triazin-2-ylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

imidazolylC₁₋₄alkyl or substituted imidazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, monoxide and hydroxyl;

tetrazolylC₁₋₄alkyl or substituted tetrazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, monoxide and hydroxyl;

triazolylC₁₋₄alkyl or substituted triazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, monoxide and hydroxyl;

indolylC₁₋₄alkyl or substituted indolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, monoxide and hydroxyl;

indazolylC₁₋₄alkyl or substituted indazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, monoxide and hydroxyl;

benzoxazolylC₁₋₄alkyl or substituted benzoxazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, monoxide and hydroxyl;

benzimidazolylC₁₋₄alkyl or substituted benzimidazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, thio, monoxide and hydroxyl;

benzotriazolylC₁₋₄alkyl or substituted benzotriazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, monoxide and hydroxyl;

benzodioxolylC₁₋₄alkyl, substituted benzodioxolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, carbonyl, aminoC₁₋₄alkyl, sulfuryl, monoxide and hydroxyl;

N-amidinopiperazinyl-N—C₀₋₄alkyl, N-amidinopiperidinylC₁₋₄alkyl;

4-aminocyclohexylC₀₋₂alkyl; thiophenylC₁₋₄alkyl, bipiperidinylcarbonyloxy; amideC₁₋₄alkyl; ureaC₁₋₄alkyl; amino C₁₋₄alkyl; cycloalkylC₁₋₄alkyl and diaminosulfurylC₁₋₄alkyl; and

R₃ is selected from the group consisting of:

hydrogen; aminoC₂₋₅alkyl; guanidinoC₂₋₅alkyl; C₁₋₄alkylguanidinoC₂₋₅alkyl, diC₁₋₄alkylguanidino-C₂₋₅alkyl; amidinoC₂₋₅alkyl; C₁₋₄alkylamidinoC₂₋₅alkyl; diC₁₋₄alkylamidinoC₂₋₅alkyl; C₁₋₃alkoxy;

C₁₋₁₂alkyl; C₆₋₁₂aryl; C₆₋₁₂arylalkyl; C₂₋₁₂alkenyl;

phenyl or substituted phenyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoroC₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

naphthyl or substituted naphthyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoroC₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, and hydroxyl;

benzyl or substituted benzyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

bisphenylmethyl or substituted bisphenylmethyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

pyridinyl or substituted pyridinyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

pyridinylC₁₋₄alkyl, or substituted pyridinylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

pyrimidinylC₁₋₄alkyl, or substituted pyrimidinylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

triazin-2-ylC₁₋₄alkyl, or substituted triazin-2-ylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

imidazolylC₁₋₄alkyl or substituted imidazolylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

N-amidinopiperazinyl-N—C₀₋₄alkyl, N-amidinopiperidinylC₁₋₄alkyl; and

4-aminocyclohexylC₀₋₂alkyl.

In certain embodiments, R₂, R₄ and R₅ of compounds of Formula (I) are independently selected from the group consisting of:

C₁₋₁₂alkyl or substituted C₁₋₁₂alkyl having one or more substituents independently selected from acyl, carboxy, alkylthio, aminocarbonyl, morpholinyl, methyl-piperazinyl, phenyl, cyano, C₁₋₅alkylamino, diC₁₋₅alkylamino, hydroxyl, C₁₋₆alkoxy, and phenylsulfonyl;

C₂₋₁₂alkenyl or substituted C₂₋₁₂alkenyl having one or more substituents independently selected from acyl, carboxy, alkylthio, and phenylsulfonyl;

substituted C₆₋₁₂aryl substituted with amidosulfonate;

arylC₁₋₄alkyl or substituted arylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄dialkylamino, C₃₋₆cycloalkyl, halogen, perfluoroC₁₋₄alkyl, C₁₋₆alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, hydroxyl, C₁₋₆alkyloxyC₁₋₆acyl, morphorlinylC₁₋₆alkyl, aryl, aryloxy, (alkyl)(arylalkyl)amino, heterocyclyl, acyl, amidosulfonate, aminocarbonyl, alkylsulfonate, alkylsulfonyl, alkylthio, arylthio, phenylsulfonate, phenylsulfonyl, morphorlinylC₁₋₃alkoxy, N-formamidyl, amide, hydroxyC₁₋₄alkyl, dihydroxyC₁₋₄alkyl, urea, thiourea, ureaC₁₋₄alkyl, carbamoylurea, carbonyl, carbonylamino, aminosulfo, amidesulfo, aminoC₁₋₄alkyl, allyl, acetylenyl, and pyrrolidonyl;

heterocyclyl or substituted heterocyclyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₆alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

heterocyclylC₁₋₄alkyl or substituted heterocyclylC₁₋₄alkyl having one or more substituents independently selected from: amino, amide, monoxide, thio, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, C₃₋₆cycloalkyl, halogen, perfluoroC₁₋₄alkyl, C₁₋₆alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, hydroxyl, C₁₋₆alkyloxyC₁₋₆acyl, morphorlinylC₁₋₆alkyl, arylalkyl, aryl, heterocyclyl, acyl, phenylsulfonyl, cycloalkylalkyl, acyloxyalkyl, aminocarbonyl, and C₁₋₆alkylformamidyl;

cycloalkyl or substituted cycloalkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl; and

cycloalkylalkyl or substituted cycloalkylalkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl; and

R₃ is selected from the group consisting of:

hydrogen;

C₁₋₁₂alkyl or substituted C₁₋₁₂alkyl having one or more substituents independently selected from acyl, carboxy, alkylthio, and phenylsulfonyl;

C₂₋₁₂alkenyl or substituted C₂₋₁₂alkenyl having one or more substituents independently selected from acyl, carboxy, alkylthio, and phenylsulfonyl;

substituted C₆₋₁₂aryl substituted with amidosulfonate;

arylC₁₋₄alkyl or substituted arylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄dialkylamino, C₃₋₆cycloalkyl, halogen, perfluoroC₁₋₄alkyl, C₁₋₆alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, hydroxyl, C₁₋₆alkyloxyC₁₋₆acyl, morphorlinylC₁₋₆alkyl, aryl, aryloxy, (alkyl)(arylalkyl)amino, heterocyclyl, acyl, amidosulfonate, aminocarbonyl, alkylsulfonate, alkylsulfonyl, alkylthio, arylthio, phenylsulfonate, phenylsulfonyl, morphorlinylC₁₋₃alkoxy, N-formamidyl, and pyrrolidonyl;

heterocyclyl or substituted heterocyclyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl;

heterocyclylC₁₋₄alkyl or substituted heterocyclylC₁₋₄alkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, C₃₋₆cycloalkyl, halogen, perfluoroC₁₋₄alkyl, C₁₋₆alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl, hydroxyl, C₁₋₆alkyloxyC₁₋₆acyl, morphorlinylC₁₋₆alkyl, arylalkyl, aryl, heterocyclyl, acyl, phenylsulfonyl, cycloalkylalkyl, acyloxyalkyl, aminocarbonyl and C₁₋₄alkylformamidyl;

cycloalkyl or substituted cycloalkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl; and

cycloalkylalkyl or substituted cycloalkylalkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₄alkyl, C₁₋₄alkyl, C₁₋₃alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl.

In certain embodiment of the compounds described in the preceding paragraph, arylC₁₋₄alkyl is benzyl, bisphenylmethyl, naphthylmethyl or 3,3-bisphenylpropyl; and

heterocyclylC₁₋₄alkyl is benzotriazolylC₁₋₄alkyl, benzopyrazolylC₁₋₄alkyl, indazolylC₁₋₄alkyl, isoquinolylC₁₋₄alkyl, benzothiazolylC₁₋₄alkyl, quinolinylC₁₋₄alkyl, imidazolinylC₁₋₄alkyl, thienylC₁₋₄alkyl, tetrahydrofuranylC₁₋₄alkyl, pyridinylC₁₋₄alkyl, pyrimidinylC₁₋₄alkyl, benzimidazolylC₁₋₄alkyl, thiophenylC₁₋₄alkyl tetrazolylC₁₋₄alkyl, benzoxazolylC₁₋₄alkyl, benzodioxolylC₁₋₄alkyl or indolylC₁₋₄alkyl.

In the embodiment where E is CHR₃, the reverse turn mimetic compound of this invention has a structure of Formula (II):

wherein W is —(C═O)—, —(C═O)NH—, —(C═O)O—, —(C═O)S—, —S(O)₂— or a bond; and each of R₁, R₂, R₃, R₄ and R₅ is the same or different and independently an amino side chain moiety or an amino acid side chain derivative.

In certain embodiments, R₁ of compounds of Formula (II) is phenyl, substituted phenyl, pyridinyl, substituted pyridinyl, pyrimidinyl, substituted pyrimidinyl, indolyl, substituted indolyl, benzothiazolyl, substituted benzothiazolyl, benzimidazolyl, substituted benzimidazolyl, benzothiophenyl, substituted benzothiophenyl, benzodioxolyl, substituted benzodioxolyl, benzoxazolyl, substituted benzoxazolyl, benzisoxazolyl, substituted benzisoxazolyl, chromonyl, substituted chromonyl, tetrahydro-carbazolyl, substituted tetrahydro-carbazolyl, benzyl or substituted benzyl, aminocarbonylC₁₋₆alkyl, C1-3alkylthiazolyl-aminocarbonylC₁₋₆alkyl, dibenzofuranyl, acetylenyl, or styrenyl.

In certain embodiment of the compounds described in the preceding paragraph,

R₂, R₄ and R₅ are independently selected from the group consisting of:

C₁₋₁₂alkyl or substituted C₁₋₁₂alkyl having one or more substituents independently selected from: halogen, cyano, C₁₋₆alkoxy, amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, aminocarbonyl, morpholinyl, methyl-piperazinyl, phenyl, and hydroxyl;

C₂₋₁₂alkenyl or substituted C₂₋₁₂alkenyl having one or more substituents independently selected from: amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₆₋₁₂aryl or substituted C₆₋₁₂aryl having one or more substituents independently selected from: halogen, amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₁₋₆alkoxy; diC₁₋₅alkylamino;

C₆₋₁₃heterocyclylalkyl, which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur, or substituted C₆₋₁₃heterocyclylalkyl which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur and has one or more substituents independently selected from: halogen, C₁₋₆alkyl, C₁₋₆alkoxy, cyano, amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, perfluoroC₁₋₄alkyl, nitro, carboxy, carbonyl, aminoC₁₋₄alkyl, sulfuryl, thio, monoxide and hydroxyl; and

C₇₋₁₃arylalkyl or substituted C₇₋₁₃arylalkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₆alkyl, C₁₋₆alkoxy, nitro, carboxy, cyano, sulfuryl, amide, hydroxyC₁₋₄alkyl, dihydroxyC₁₋₄alkyl, urea, thiourea, ureaC₁₋₄alkyl, carbamoylurea, carbonyl, carbonylamino, aminosulfo, amidesulfo, aminoC₁₋₄alkyl, allyl, C₁₋₄alkyl, aminoC₁₋₄alkyl, acetylenyl, hydroxyl, phosphate, dimethylaminoacetate, dimethylaminoalkylcarbamate, and diethyl-phosphono-acetamido; and

R₃ is selected from the group consisting of

hydrogen;

C₁₋₁₂alkyl or substituted C₁₋₁₂alkyl having one or more substituents independently selected from: halogen, cyano, C₁₋₆alkoxy, amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₂₋₁₂alkenyl or substituted C₂₋₁₂alkenyl having one or more substituents independently selected from: amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₆₋₁₂aryl or substituted C₆₋₁₂aryl having one or more substituents independently selected from: halogen, amino, guanidino, C₁₋₄alkylguanidino, diC₁₋₄alkylguanidino, amidino, C₁₋₄alkylamidino, diC₁₋₄alkylamidino, C₁₋₅alkylamino, diC₁₋₅alkylamino, and hydroxyl;

C₁₋₆alkoxy;

C₆₋₁₃heterocyclylalkyl, which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur, or substituted C₆₋₁₃heterocyclylalkyl which has 1 to 2 heteroatoms selected from nitrogen, oxygen or sulfur and has one or more substituents independently selected from: halogen, C₁₋₆alkyl, C₁₋₆alkoxy, cyano, and hydroxyl; and

C₇₋₁₃arylalkyl or substituted C₇₋₁₃arylalkyl having one or more substituents independently selected from: amino, amidino, guanidino, hydrazino, C₁₋₄alkylamino, C₁₋₄dialkylamino, halogen, perfluoro C₁₋₆alkyl, C₁₋₆alkoxy, nitro, carboxy, cyano, sulfuryl and hydroxyl.

In certain embodiment of the compounds described in the preceding paragraph, R₁ of compounds of Formula (II) is selected from the group consisting of substituted phenyl having one or more substituents independently selected from: halogen, nitro, cyano, hydroxyl, C₁₋₁₂alkoxy, substituted C₁₋₁₂alkoxy, C₁₋₁₂alkyl, carbonyl, carboxy, acetyl, C₁₋₁₂alkylthio, C₆₋₁₂arylthio, thiophenyl, sulfonyl, C₆₋₁₂aryloxy, substituted C₆₋₁₂aryloxy, indanyloxy, amino, aldoaminoC₁₋₁₂alkylbenzylamino, amide, C₁₋₁₂alkyl-sulfonic acid, C₁₋₁₂alkyl phosphoric acid, phenyl, substituted phenyl, pyrrolidinyl, piperazinyl, pyridinyl, substituted pyridinyl, tetrazolyl, thiazolyl, pyridinone, and imidazolyl;

substituted pyridinyl having one or more substituents independently selected from: halogen, cycloalkyl, phenyl, substituted phenyl, pyrrolidinyl-piperidinyl, pyridinyl, C₁₋₁₂alkyl, carbonyl, amide, and carboxy;

substituted pyrimidinyl having one or more substituents independently selected from phenyl and amino;

substituted indolyl having one or more substituents independently selected from: phenyl, substituted phenyl, substituted benzyl, pyridinyl, sulfonyl, acetyl, acyl, carbonyl, C₁₋₁₂alkyl, acyloxy C₁₋₁₂alkyl, C₁₋₁₂alkoxy, halogen, monoxide, and cyano;

substituted benzimidazolyl having one or more substituents independently selected from: carbonyl, monoxide, thio, perfluoroC₁₋₄alkyl, cyanoC₁₋₄alkyl, and C₁₋₁₂alkyl;

substituted benzothiophenyl having one or more substituents independently selected from: nitro, amino, C₁₋₄alkylamino, bisbenzylamino, amide, halogen, benzylamino, sulfonyl, dioxo, aldoamino, and carbonyl;

substituted benzodioxolyl having one or more substituents independently selected from: nitro and halogen;

substituted benzoxazolyl having one or more substituents independently selected from: monoxide, and thio;

substituted benzisoxazolyl having one or more substituents independently selected from: amino;

substituted chromonyl having one or more substituents independently selected from: phenyl; and

substituted tetrahydro-carbazolyl having one or more substituents independently selected from: sulfonyl;

R₂ and R₅ are independently C₁₋₁₂alkyl, C₆₋₁₂aryl, C₇₋₁₂arylalkyl, C₆₋₁₁heterocyclylalkyl, hydroxybenzyl, or substituted benzyl having a substituents selected from phosphate, dimethylaminoacetate, (2-dimethylamino-ethyl)-carbamate, and diethyl-phosphono-acetamido;

R₃ is hydrogen or C₁₋₁₂alkyl; and

R₄ is C₁₋₁₂alkyl, C₇₋₁₂arylalkyl, or C₂₋₁₂alkenyl.

In certain embodiment of the compounds described in the preceding paragraph, substituted phenyl is halo-phenyl, cyano phenyl, C₁₋₁₂alkoxy phenyl, hydroxy phenyl, carboxy phenyl, acetamide phenyl, aminocarbonyl phenyl, amino phenyl, alkylsulfonyl phenyl, or alkylthio phenyl;

substituted benzyl is nitro-benzyl, or amino-benzyl;

amide group is C₁₋₆alkylamide, carbamide, C₁₋₆alkylcarbamide, C₁₋₆alkylcarbamate, C₁₋₆alkylalkoxycarbamate, formamide, C₁₋₆alkylformamide, carbamoylurea, or acetamide;

carbonyl group is cycloalkylcarbonyl, C₁₋₁₂alkoxycarbonyl, morpholinylcarbonyl, aminocarbonyl, C₁₋₁₂alkylaminocarbonyl, di C₁₋₁₂alkylaminocarbonyl, C₁₋₁₂alkynylaminocarbonyl, C₂₋₁₃alkoxyalkylaminocarbonyl thiophenyl C₁₋₁₂alkylaminocarbonyl, benzylaminocarbonyl, dihydropyrrolylcarbonyl, cycloalkyl C₁₋₁₂alkylcarbonyl, cycloalkenyl C₁₋₁₂alkylcarbonyl, C₂₋₁₃alkoxyalkylcarbonyl, imidazolylaminocarbonyl, piperidinylcarbonyl, pyrrolidinylcarbonyl, alkoxyaminocarbonyl, hydroxyaminocarbonyl, hydroC₁₋₁₂alkylaminocarbonyl, hydrazinylcarbonyl, C₁₋₁₂alkylformatehydrazinylcarbonyl, or tetrahydrofuranylC₁₋₁₂alkylaminocarbonyl;

sulfonyl group is tosyl, phenyl sulfonyl, C₁₋₁₂alkyl sulfonyl, C₁₋₁₂alkylsulfonylamino, aminosulfonylamino or halo-phenyl sulfonyl;

substituted alkoxy is morpholinyl C₁₋₁₂alkoxy, dihalo-C₁₋₁₂alkoxy, or piperazinyl C₁₋₁₂alkoxy;

substituted aryloxy is halo-C₆₋₁₂aryloxy;

substituted pyridinyl is halo-pyridinyl, C₁₋₁₂alkoxy pyridinyl, amino pyridinyl, or morpholinyl pyridinyl;

substituted tetrahydro-carbazolyl is phenylsulfonyl-6,7,8,9-tetrahydro-5H-carbazolyl.

These compounds may be prepared by utilizing appropriate starting component molecules (hereinafter referred to as “component pieces”). Briefly, in the synthesis of reverse-turn mimetic structures having Formula (I), the reverse-turn mimetic structures of Formula (I) may be prepared by sequential coupling of the individual component pieces either stepwise in solution or by solid phase synthesis as commonly practiced in solid phase peptide synthesis, followed by cyclizing to yield the reverse-turn mimetic structures of this invention. Alternatively, first and second component pieces are coupled to form a combined first-second intermediate, if necessary, third and/or fourth component pieces are coupled to form a combined third-fourth intermediate (or, if commercially available, a single third intermediate may be used), the combined first-second intermediate and third-fourth intermediate (or third intermediate) are then coupled to provide a first-second-third-fourth intermediate (or first-second-third intermediate) which is cyclized to yield the reverse-turn mimetic structures of this invention.

Specific component pieces and the assembly thereof to prepare compounds of the present invention are illustrated in FIG. 1. For example, a “first component piece” may have the following formula S1:

wherein R₁ is as defined above, and R is a protective group suitable for use in peptide synthesis, where this protection group may be joined to a polymeric support to enable solid-phase synthesis. Suitable R groups include alkyl groups and, in a preferred embodiment, R is a methyl group. In FIG. 1, one of the R groups is a polymeric (solid) support, indicated by “Pol” in the Figure. Such first component pieces may be readily synthesized by reductive amination of H₂N—C—R₁ with CH(OR)₂—CHO, or by a displacement reaction between H₂N—C—R₁ and CH(OR)₂—CH₂-LG (wherein LG refers to a leaving group, e.g., a halogen (Hal) group).

A “second component piece” may have the following formula S2:

where P is an amino protection group suitable for use in peptide synthesis, L₁ is hydroxyl or a carboxyl-activation group, and R₂ is as defined above. Preferred protection groups include t-butyl dimethylsilyl (TBDMS), t-butyloxycarbonyl (BOC), methyloxycarbonyl (MOC), 9H-fluorenylmethyloxycarbonyl (FMOC), and allyloxycarbonyl (Alloc). N-Protected amino acids are commercially available; for example, FMOC amino acids are available from a variety of sources. In order for the second component piece to be reactive with the first component piece, L₁ is a carboxyl-activation group, and the conversion of carboxyl groups to activated carboxyl groups may be readily achieved by methods known in the art for the activation of carboxyl groups. Suitable activated carboxylic acid groups include acid halides where L₁ is a halide such as chloride or bromide, acid anhydrides where L₁ is an acyl group such as acetyl, reactive esters such as N-hydroxysuccinimide esters and pentafluorophenyl esters, and other activated intermediates such as the active intermediate formed in a coupling reaction using a carbodiimide such as dicyclohexylcarbodiimide (DCC). Accordingly, commercially available N-protected amino acids may be converted to carboxylic activated forms by means known to one of skill in the art.

In the case of the azido derivative of an amino acid serving as the second component piece, such compounds may be prepared from the corresponding amino acid by the reaction disclosed by Zaloom et al. (J. Org. Chem. 46:5173-76, 1981).

A “third component piece” of this invention may have the following formula S3:

where R₄, E, and L₁ are as defined above. Suitable third component pieces are commercially available from a variety of sources or can be prepared by methods well known in organic chemistry.

FIG. 1 illustrates the preparation of compounds of Formula (I).

Thus, as illustrated above, the reverse-turn mimetic compounds of Formula (I) may be synthesized by reacting a first component piece with a second component piece to yield a combined first-second intermediate, followed by reacting the combined first-second intermediate with third component pieces sequentially to provide a combined first-second-third-fourth intermediate, and then cyclizing this intermediate to yield the reverse-turn mimetic structure.

The syntheses of representative component pieces of this invention are described in Preparation Examples.

The reverse-turn mimetic structures of Formula (I) and (II) may be made by techniques analogous to the modular component synthesis disclosed above, but with appropriate modifications to the component pieces.

The reverse-turn mimetic structures of the present invention are useful as bioactive agents, such as diagnostic, prophylactic, and therapeutic agents. For example, the reverse-turn mimetic structures of the present invention may be used for modulating a cell signaling transcription factor related peptides in a warm-blooded animal, by a method comprising administering to the animal an effective amount of the compound of Formula (I).

Further, the reverse-turn mimetic structures of the present invention may also be effective for inhibiting peptide binding to PTB domains in a warm-blooded animal; for modulating G protein coupled receptor (GPCR) and ion channel in a warm-blooded animal; for modulating cytokines in a warm-blooded animal.

It has been found that the compounds of the Formula (I), especially compounds of Formula (III) are effective for inhibiting or treating disorders modulated by Wnt-signaling pathway, such as cancer.

Formula (III) is shown above, wherein each of R₁, R₄, and R₆ is the same or different and independently an amino acid side chain moiety or an amino acid side chain derivative, X₁ may be hydrogen, hydroxyl, or halogen, and X₂ and X₃ may be independently hydrogen, hydroxyl, or any groups that may make the compound a prodrug, such as phosphate, carboxylate, carbamate and substituted amine.

In certain embodiments of the compounds of Formula (III),

R₁ is phenyl, substituted phenyl, pyridinyl, substituted pyridinyl, pyrimidinyl, substituted pyrimidinyl, indolyl, substituted indolyl, benzothiazolyl, substituted benzothiazolyl, benzimidazolyl, substituted benzimidazolyl, benzothiophenyl, substituted benzothiophenyl, benzodioxolyl, substituted benzodioxolyl, benzoxazolyl, substituted benzoxazolyl, benzisoxazolyl, substituted benzisoxazolyl, chromonyl, substituted chromonyl, tetrahydro-carbazolyl, substituted tetrahydro-carbazolyl, benzyl or substituted benzyl, aminocarbonylC₁₋₆alkyl, C₁₋₃alkylthiazolyl-aminocarbonylC₁₋₆alkyl, dibenzofuranyl, acetylenyl, or styrenyl;

R₄ is C₁₋₆alkyl, C₁₋₆alkoxy, C₂₋₆alkenyl or perfluoroC₁₋₆alkyl;

R₆ is C₆₋₁₂aryl or substituted C₆₋₁₂aryl having one or more substituents independently selected from the group consisting of: halogen; hydroxyl; cyano; C₁₋₆alkyl; and C₁₋₆alkoxy; or C₅₋₁₂heterocyclyl or substituted C₅₋₁₂heterocyclyl having one or more substituents independently selected from: halogen, hydroxyl, cyano, C₁₋₆alkyl, and C₁₋₆alkoxy;

X₁ is hydrogen, hydroxyl or halogen; and

each of X₂ and X₃ is independently hydrogen, hydroxyl, phosphate, dimethylaminoacetate, (2-dimethylamino-ethyl)-carbamate, diethyl-phosphono-acetamido or halogen.

In certain embodiment of the compounds described in the preceding paragraph,

R₁ is selected from the group consisting of:

substituted phenyl having one or more substituents independently selected from: halogen, nitro, cyano, hydroxyl, C₁₋₁₂alkoxy, substituted C₁₋₁₂alkoxy, C₁₋₁₂alkyl, carbonyl, carboxy, acetyl, C₁₋₁₂alkylthio, C₆₋₁₂arylthio, thiophenyl, sulfonyl, C₆₋₁₂aryloxy, substituted C₆₋₁₂aryloxy, indanyloxy, amino, aldoaminoC₁₋₁₂alkylbenzylamino, amide, C₁₋₁₂alkyl-sulfonic acid, C₁₋₁₂alkyl phosphoric acid, phenyl, substituted phenyl, pyrrolidinyl, piperazinyl, pyridinyl, substituted pyridinyl, tetrazolyl, thiazolyl, pyridinone, and imidazolyl;

substituted pyridinyl having one or more substituents independently selected from: halogen, cycloalkyl, phenyl, substituted phenyl, pyrrolidinyl-piperidinyl, pyridinyl, carbonyl, amide, and carboxy;

substituted pyrimidinyl having one or more substituents independently selected from phenyl and amino:

substituted indolyl having one or more substituents independently selected from: phenyl, substituted phenyl, substituted benzyl, pyridinyl, sulfonyl, acetyl, acyl, carbonyl, C₁₋₁₂alkyl, acyloxy C₁₋₁₂alkyl, C₁₋₁₂alkoxy, halogen, monoxide, and cyano;

substituted benzimidazolyl having one or more substituents independently selected from: carbonyl, monoxide, thio, perfluoroC₁₋₄alkyl, cyanoC₁₋₄alkyl, and

substituted benzothiophenyl having one or more substituents independently selected from: nitro, amino, C₁₋₄alkylamino, bisbenzylamino, amide, halogen, benzylamino, sulfonyl, dioxo, aldoamino, and carbonyl;

substituted benzodioxolyl having one or more substituents independently selected from: nitro and halogen;

substituted benzoxazolyl having one or more substituents independently selected from: monoxide, and thio;

substituted benzisoxazolyl having one or more substituents independently selected from: amino;

substituted chromonyl having one or more substituents independently selected from: phenyl; and

substituted tetrahydro-carbazolyl having one or more substituents independently selected from: sulfonyl;

R₄ is C₁₋₃alkyl or allyl; and

R₆ is phenyl or substituted phenyl having one or more substituents independently selected from: halogen, hydroxyl, cyano, C₁₋₆alkyl and C₁₋₆alkoxy; or pyridyl or substituted pyridyl having one or more substituents independently selected from: halogen, hydroxyl, cyano, C₁₋₆alkyl and C₁₋₆alkoxy.

In certain embodiment of the compounds described in the preceding paragraph,

substituted phenyl is halo-phenyl, cyano phenyl, C₁₋₁₂alkoxy phenyl, hydroxy phenyl, carboxy phenyl, acetamide phenyl, aminocarbonyl phenyl, amino phenyl, alkylsulfonyl phenyl, or alkylthio phenyl;

substituted benzyl is nitro-benzyl, or amino-benzyl;

amide group is C₁₋₆alkylamide, carbamide, C₁₋₆alkylcarbamide, C₁₋₆alkylcarbamate,

C₁₋₆alkylalkoxycarbamate, formamide, C₁₋₆alkylformamide, carbamoylurea, or acetamide;

carbonyl group is cycloalkylcarbonyl, C₁₋₁₂alkoxycarbonyl, morpholinylcarbonyl, aminocarbonyl, C₁₋₁₂alkylaminocarbonyl, di C₁₋₁₂alkylaminocarbonyl, C₁₋₁₂alkynylaminocarbonyl, C₂₋₁₃alkoxyalkylaminocarbonyl thiophenyl C₁₋₁₂alkylaminocarbonyl, benzylaminocarbonyl, dihydropyrrolylcarbonyl, cycloalkyl C₁₋₁₂alkylcarbonyl, cycloalkenyl C₁₋₁₂alkylcarbonyl, C₂₋₁₃alkoxyalkylcarbonyl, imidazolylaminocarbonyl, piperidinylcarbonyl, pyrrolidinylcarbonyl, alkoxyaminocarbonyl, hydroxyaminocarbonyl, hydroC₁₋₁₂alkylaminocarbonyl, hydrazinylcarbonyl, C₁₋₁₂alkylformatehydrazinylcarbonyl, or tetrahydrofuranylC₁₋₁₂alkylaminocarbonyl;

sulfonyl group is tosyl, phenyl sulfonyl, C₁₋₁₂alkyl sulfonyl, C₁₋₁₂alkylsulfonylamino, aminosulfonylamino or halo-phenyl sulfonyl;

substituted alkoxy is morpholinyl C₁₋₁₂alkoxy, dihalo-C₁₋₁₂alkoxy, or piperazinyl C₁₋₁₂alkoxy;

substituted aryloxy is halo-C₆₋₁₂aryloxy;

substituted pyridinyl is halo-pyridinyl, C₁₋₁₂alkoxy pyridinyl, amino pyridinyl, or morpholinyl pyridinyl; or

substituted tetrahydro-carbazolyl is phenylsulfonyl-6,7,8,9-tetrahydro-5H-carbazolyl.

In another aspect of this invention, prodrugs derived from compounds having general Formula (I) are disclosed. The prodrugs generally increase aqueous solubility and thus bioavailability of compounds having general Formula (I). In certain embodiments, the prodrugs of the present invention have the following general Formula (IV): (III)-R₇  (IV)

wherein one of R₁, R₄, R₆, X₁, X₂, and X₃ is linked to R₇ via Y, wherein:

Y is an oxygen, sulfur, or nitrogen in R₁, R₄, or R₆, or an oxygen in X₁, X₂, or X₃; and

R₇ is hydroxyalkyl, glycosyl, phosphoryloxymethyloxycarbonyl, substituted or =substituted piperidine carbonyloxy, or a salt thereof; or Y—R₇ is an amino acid residue, a combination of amino acid residues, phosphate, hemimalate, hemisuccinate, dimethylaminoalkylcarbamate, dimethylaminoacetate, or a salt thereof; and

when not linked to R₇: R₁, R₄, R₆, X₁, X₂, and X₃ are defined as they are in Formula (III).

In another aspect of this invention, libraries containing reverse-turn mimetic structures of the present invention are disclosed. Once assembled, the libraries of the present invention may be screened to identify individual members having bioactivity. Such screening of the libraries for bioactive members may involve; for example, evaluating the binding activity of the members of the library or evaluating the effect the library members have on a functional assay. Screening is normally accomplished by contacting the library members (or a subset of library members) with a target of interest, such as, for example, an antibody, an enzyme, a receptor or a cell line. Library members which are capable of interacting with the target of interest are referred to herein as “bioactive library members” or “bioactive mimetics”. For example, a bioactive mimetic may be a library member which is capable of binding to an antibody or receptor, or which is capable of inhibiting an enzyme, or which is capable of eliciting or antagonizing a functional response associated, for example, with a cell line. In other words, the screening of the libraries of the present invention determines which library members are capable of interacting with one or more biological targets of interest. Furthermore, when interaction does occur, the bioactive mimetic (or mimetics) may then be identified from the library members. The identification of a single (or limited number) of bioactive mimetic(s) from the library yields reverse-turn mimetic structures which are themselves biologically active, and thus are useful as diagnostic, prophylactic or therapeutic agents, and may further be used to significantly advance identification of lead compounds in these fields.

Synthesis of the peptide mimetics of the library of the present invention may be accomplished using known peptide synthesis techniques, in combination with the first, second and third component pieces of this invention. More specifically, any amino acid sequence may be added to the N-terminal and/or C-terminal of the conformationally constrained reverse-turn mimetic. To this end, the mimetics may be synthesized on a solid support (such as PAM resin) by known techniques (see, e.g., John M. Stewart and Janis D. Young, Solid Phase Peptide Synthesis, 1984, Pierce Chemical Comp., Rockford, Ill.) or on a silyl-linked resin by alcohol attachment (see Randolph et al., J. Am. Chem. Soc. 117:5712-14, 1995).

In addition, a combination of both solution and solid phase synthesis techniques may be utilized to synthesize the peptide mimetics of this invention. For example, a solid support may be utilized to synthesize the linear peptide sequence up to the point that the conformationally constrained reverse-turn is added to the sequence. A suitable conformationally constrained reverse-turn mimetic structure which has been previously synthesized by solution synthesis techniques may then be added as the next “amino acid” to the solid phase synthesis (i.e., the conformationally constrained reverse-turn mimetic, which has both an N-terminus and a C-terminus, may be utilized as the next amino acid to be added to the linear peptide). Upon incorporation of the conformationally constrained reverse-turn mimetic structures into the sequence, additional amino acids may then be added to complete the peptide bound to the solid support. Alternatively, the linear N-terminus and C-terminus protected peptide sequences may be synthesized on a solid support, removed from the support, and then coupled to the conformationally constrained reverse-turn mimetic structures in solution using known solution coupling techniques.

In one aspect of this invention, methods for constructing the libraries are disclosed. Traditional combinatorial chemistry techniques (see, e.g., Gallop et al., J. Med. Chem. 37:1233-1251, 1994) permit a vast number of compounds to be rapidly prepared by the sequential combination of reagents to a basic molecular scaffold. Combinatorial techniques have been used to construct peptide libraries derived from the naturally occurring amino acids. For example, by taking 20 mixtures of 20 suitably protected and different amino acids and coupling each with one of the 20 amino acids, a library of 400 (i.e., 20²) dipeptides is created. Repeating the procedure seven times results in the preparation of a peptide library comprised of about 26 billion (i.e., 20⁸) octapeptides.

Specifically, synthesis of the peptide mimetics of the library of the present invention may be accomplished using known peptide synthesis techniques, for example, the General Scheme of Reverse-Turn Mimetic Library, as follows:

Synthesis of the peptide mimetics of the libraries of the present invention was accomplished using a FlexChem Reactor Block which has 96 well plates by known techniques. In the above scheme ‘Pol’ represents a bromoacetal resin (Advanced ChemTech) and detailed procedure is illustrated below:

Step 1

A bromoacetal resin (37 mg, 0.98 mmol/g) and a solution of R₁-amine in DMSO (1.4 mL) were placed in a Robbins block (FlexChem) having 96 well plates. The reaction mixture was shaken at 60° C. using a rotating oven [Robbins Scientific] for 12 hours. The resin was washed with DMF, MeOH, and then DCM

Step 2

A solution of commercially available Fmoc-NH—CH(R₂)—COOH (4 equiv.), PyBob (4 equiv.), HOAt (4 equiv.), and DIEA (12 equiv.) in DMF was added to the resin. After the reaction mixture was shaken for 12 hours at room temperature, the resin was washed with DMF, MeOH, and then DCM.

Step 3

To the resin swollen by DMF before reaction was added 25% piperidine in DMF and the reaction mixture was shaken for 30 min at room temperature. This deprotection step was repeated again and the resin was washed with DMF, Methanol, and then DCM. A solution of hydrazine acid (4 equiv.), HOBt (4 equiv.), and DIC (4 equiv.) in DMF was added to the resin and the reaction mixture was shaken for 12 hours at room temperature. The resin was washed with DMF, MeOH, and then DCM.

Step 4

The resin obtained in Step 3 was treated with formic acid (1.2 mL each well) for 18 hours at room temperature. After the resin was removed by filtration, the filtrate was condensed under a reduced pressure using SpeedVac [SAVANT] to give the product as oil. The product was diluted with 50% water/acetonitrile and then lyophilized after freezing.

To generate these block libraries the key intermediate hydrazine acids were synthesized according to the procedure illustrated in Preparation Example 1.

Table 2 shows the compounds which were prepared according to the present invention, of which representative preparation is given in Preparation Examples.

TABLE 2 REVERSE TURN MIMETICS LIBRARY M.W. NO Structure Formula M + H 1

599.66 C30H29N7O5S 600 2

597.69 C31H31N7O4S 598 3

570.66 C30H30N6O4S 571 4

610.73 C33H34N6O4S 611 5

596.70 C31H32N8O3S 597 6

623.72 C33H33N7O4S 624 7

637.75 C34H35N7O4S 638 8

653.75 C34H35N7O5S 654 9

595.71 C32H33N7O3S 596 10

624.71 C32H32N8O4S 625 11

614.71 C32H34N6O5S 615 12

644.74 C33H36N6O6S 645 13

673.80 C33H35N7O5S2 674 14

638.74 C33H34N8O4S 639 15

628.74 C33H36N6O5S 629 16

626.73 C33H34N6O5S 627 17

681.76 C34H35N9O5S 682 18

624.71 C33H32N6O5S 625 19

623.72 C33H33N7O4S 624 20

640.71 C33H32N6O6S 641 21

639.72 C33H33N7O5S 640 22

623.72 C33H33N7O4S 624 23

637.75 C34H35N7O4S 638 24

610.73 C33H34N6O4S 611 25

653.75 C34H35N7O6S 654 26

653.75 C34H35N7O5S 654 27

639.72 C33H33N7O5S 640 28

619.74 C34H33N7O3S 620 29

638.74 C33H34N8O4S 639 30

652.77 C34H36N8O4S 653 31

653.75 C34H35N7O5S 654 32

654.74 C33H34N8O5S 655 33

667.78 C35H37N7O5S 668 34

609.74 C33H35N7O3S 610 35

637.75 C34H35N7O4S 638 36

609.74 C33H35N7O3S 610 37

637.75 C34H35N7O4S 638 38

635.74 C34H33N7O4S 636 39

620.72 C33H32N8O3S 621 40

631.14 C32H31ClN6O4S 632 41

675.60 C32H31BrN6O4S 676 42

674.79 C32H34N8O5S2 675 43

722.60 C32H31IN6O4S 723 44

621.71 C33H31N7O4S 622 45

572.64 C27H28N10O3S 573 46

637.75 C33H35N9O3S 638 47

605.71 C33H31N7O3S 606 48

638.74 C33H34N8O4S 639 49

622.74 C33H34N8O3S 623 50

658.17 C33H32ClN7O4S 659 51

589.67 C28H31N9O4S 590 52

674.79 C33H34N6O6S2 675 53

602.66 C29H30N8O5S 603 54

637.71 C33H31N7O5S 638 55

610.73 C32H34N8O3S 611 56

636.72 C33H32N8O4S 637 57

652.79 C33H32N8O3S2 653 58

620.72 C33H32N8O3S 621 59

621.71 C32H31N9O3S 622 60

610.73 C33H34N6O4S 611 61

570.67 C29H30N8O3S 571 62

654.80 C33H34N8O3S2 655 63

589.71 C30H35N7O4S 590 64

604.72 C30H36N8O4S 605 65

556.68 C30H32N6O3S 557 66

612.71 C31H32N8O4S 613 67

632.74 C31H36N8O5S 633 68

659.79 C32H33N7O5S2 660 69

575.69 C29H33N7O4S 576 70

590.71 C29H34N8O4S 591 71

632.74 C31H36N8O5S 633 72

618.72 C30H34N8O5S 619 73

646.77 C32H38N8O5S 647 74

598.69 C30H30N8O4S 599 75

626.76 C28H34N8O5S2 627 76

561.71 C29H35N7O3S 562 77

547.68 C28H33N7O3S 548 78

640.79 C29H36N8O5S2 641 79

597.70 C30H31N9O3S 598 80

597.70 C30H31N9O3S 598 81

625.71 627 82

612.71 614 83

625.71 627 84

598.69 600 85

614.68 616 86

649.75 651 87

765.79 767 88

705.81 707 89

727.8  729 90

800.31 801 91

634.72 C36H38N6O5 636 92

660.76 C38H40N6O5 662 93

732.86 733 94

620.70 C35H36N6O5 622 95

593.6  C31H30F3N5O4 595 96

589.63 C32H33F2N5O4 590 97

603.66 C33H35F2N5O4 605 98

623.7  C34H37N7O5 625 99

583.64 C31H33N7O5 585 100

676.74 C32H36N8O7S 678 101

612.68 C33H36N6O6 614 102

626.7  C34H38N6O6 628 103

596.68 C33H36N6O5 598 104

641.72 C34H39N7O6 643 105

596.68 C33H36N6O5 598 106

641.67 C33H35N7O7 643 107

721.61 C32H34N7Na2O8P 723 108

764.67 C35H39N6Na2O9P 766 109

567.64 C31H33N7O4 569 110

673.74 C32H35N9O6S 675 111

661.67 C34H34F3N7O4 663 112

594.66 C32H34N8O4 596 113

621.73 C35H39N7O4 623 114

618.69 C34H34N8O4 620 115

672.76 C33H36N8O6S 674 116

579.66 581 117

567.64 C32H33N5O5 569 118

633.69 C36H35N5O6 635 119

652.52 C32H31Cl2N5O6 654 120

597.66 C32H35N7O5 599 121

618.7  C31H34N6O6S 620 122

640.69 C33H36N8O6 642 123

632.73 C32H36N6O6S 634 124

633.72 C31H35N7O6S 635 125

640.72 642 126

652.77 654 127

689.21 690 128

640.72 642 129

653.76 655 130

623.7  C34H37N7O5 625 131

647.72 C37H37N5O6 649 132

666.55 C33H33Cl2N5O6 668 133

622.74 C34H34N6O4S 624 134

611.69 C33H37N7O5 613 135

610.74 612 136

638.75 640 137

610.74 612 138

700.86 702 139

700.86 702 140

582.26 C32H34N6O5 584 141

600.63 602 142

571.65 573 143

594.67 596 144

596.64 598 145

612.71 614 146

580.64 582 147

599.64 601 148

640.72 642 149

570.67 572 150

595.66 597 151

595.66 597 152

611.72 613 153

630.17 631 154

652.77 654 155

610.74 612 156

668.77 670 157

667.79 669 158

638.75 640 159

688.83 690 160

653.76 655 161

580.64 582 162

790.99 792 163

652.82 654 164

694.9  696 165

613.71 615 166

652.77 654 167

668.77 670 168

734.68 736 169

639.74 C39H37N5O4 641 170

639.74 C39H37N5O4 641 171

620.72 C30H29FN6O4S2 622 172

650.67 C32H29F3N6O4S 652 173

628.72 C33H33FN6O4S 630 174

683.58 C32H29Cl2FN6O4S 685 175

634.75 C31H31FN6O4S2 636 176

674.74 C34H35FN6O6S 676 177

638.71 C34H31FN6O4S 640 178

628.72 C33H33FN6O4S 630 179

610.73 C33H34N6O4S 612 180

615.68 C31H30FN7O4S 617 181

674.74 C34H35FN6O6S 676 182

639.70 C33H30FN7O4S 641 183

670.78 C35H38N6O6S 672 184

735.66 C32H32N7Na2O7PS 737 185

859.60 C32H31N7Na4O10P2S 861 186

632.68 C32H30F2N6O4S 634 187

683.58 C32H29Cl2FN6O4S 685 188

782.64 C33H30FN6Na2O9PS 784 189

790.97 C43H50N8O5S 792 190

620.74 C32H37FN6O4S 622 191

646.73 C37H38N6O5 648 192

814.95 C45H46N6O7S 816 193

794.92 C45H42N6O6S 796 194

620.70 C35H36N6O5 622 195

603.67 C34H33N7O4 605 196

826.93 C46H43FN6O6S 828 197

592.69 C34H36N6O4 594 198

655.75 C38H37N7O4 657 199

608.69 C34H36N6O5 610 200

800.92 C44H44N6O7S 802 201

578.66 C33H34N6O4 580 202

660.76 C38H40N6O5 662 203

654.76 C39H38N6O4 656 204

672.75 C39H37FN6O4 674 205

732.85 C40H40N6O6S 734 206

743.83 C40H37N7O6S 745 207

620.74 C36H40N6O4 622 208

753.27 C39H37ClN6O6S 755 209

613.11 C33H33ClN6O4 615 210

795.30 C41H39ClN6O7S 797 211

579.65 C32H33N7O4 581 212

732.85 C40H40N6O6S 734 213

732.85 C40H40N6O6S 734 214

725.81 C37H39N7O7S 727 215

578.66 C33H34N6O4 580 216

699.78 C35H37N7O7S 701 217

774.88 C42H42N6O7S 776 218

733.84 C39H39N7O6S 735 219

856.79 C40H39N6Na2O9PS 735 220

716.85 C40H40N6O5S 718 221

756.87 C42H40N6O6S 758 222

858.74 C40H39IN6O6S 860 223

898.83 C42H41N6Na2O10PS 900 224

744.64 C35H35N6Na2O8P 746 225

919.25 C41H38ClN6Na2O10PS 921 226

877.21 C39H36ClN6Na2O9PS 879 227

857.78 C39H38N7Na2O9PS 859 228

692.80 C39H44N6O6 694 229

762.87 C41H42N6O7S 764 230

767.29 C40H39ClN6O6S 769 231

770.68 C37H37N6Na2O8P 772 232

853.96 C42H43N7O9S2 855 233

814.91 C40H46N8O9S 816 234

840.95 C42H48N8O9S 842 235

918.86 C45H41N6Na2O9PS 920 236

778.70 C39H37N6Na2O79 780 237

664.75 C37H40N6O6 666 238

713.78 C40H39N7O6 715 239

683.80 C40H41N7O4 685 240

654.68 C31H32F2N6O6S 656 241

668.71 C32H34F2N6O6S 670 242

561.62 C31H33F2N5O3 563 243

574.62 C31H32F2N6O3 576 244

603.62 C32H31F2N5O5 605 245

732.73 C37H38F2N6O8 734 246

618.63 C32H32F2N6O5 620 247

756.71 C37H38N6Na2O9 758 248

583.64 C31H33N7O5 585 249

582.65 C32H34N6O5 584 250

627.65 C32H33N7O7 629 251

626.70 C34H38N6O6 628 252

612.68 C33H36N6O6 614 253

611.69 C33H37N7O5 613 254

640.73 C35H40N6O6 642 255

597.66 C32H35N7O5 599 256

652.74 C36H40N6O6 654 257

610.70 C34H38N6O5 612 258

666.77 C37H42N6O6 668 259

701.79 C35H39N7O7S 703 260

596.68 C33H36N6O5 598 261

636.74 C36H40N6O5 638 262

661.73 C32H35N7O7S 663 263

636.74 C36H40N6O5 638 264

624.73 C35H40N6O5 626 265

634.72 C36H38N6O5 636 266

650.77 C37H42N6O5 652 267

650.77 C37H42N6O5 652 268

697.78 C37H43N7O7 699 269

598.65 C32H34N6O6 600 270

583.64 C31H33N7O5 585 271

672.77 C39H40N6O5 674 272

696.84 C39H48N6O6 698 273

664.79 C38H44N6O5 666 274

678.82 C39H46N6O5 680 275

673.76 C38H39N7O5 675 276

648.71 C35H36N8O5 650 277

690.83 C40H46N6O5 692 278

636.74 C36H40N6O5 638 279

679.79 C36H37N7O5S 681 280

678.80 C37H38N6O5S 680 281

597.66 C32H35N7O5 599 282

712.75 C37H40N6O9 714 283

736.82 C39H44N8O7 738 284

579.65 C32H33N7O4 581 285

636.70 C34H36N8O5 638 286

583.63 C32H33N5O6 585 287

662.71 C32H34N6O8S 664 288

584.62 C31H32N6O6 586 289

633.63 C32H36N5O7P 635 290

595.71 C33H33N5O4S 597 291

612.68 C33H36N6O6 614 292

617.72 C32H35N5O6S 619 293

607.66 C32H33N9O4 609 294

659.73 C38H37N5O6 661 295

564.63 C32H32N6O4 566 296

581.66 C33H35N5O5 583 297

632.71 C36H36N6O5 634 298

607.66 C34H33N5O6 609 299

694.80 C37H38N6O6S 696 300

597.66 C33H35N5O6 599 301

619.51 C30H31BrN6O4 621 302

642.66 C33H34N6O8 644 303

619.51 C30H31BrN6O4 621 304

595.71 C33H33N5O4S 597 305

585.72 C32H35N5O4S 587 306

584.62 C31H32N6O6 586 307

554.64 C31H34N6O4 556 308

623.74 C35H41N7O4 625 309

616.71 C36H36N6O4 618 310

616.71 C36H36N6O4 618 311

580.68 C33H36N6O4 582 312

607.66 C32H33N9O4 609 313

604.10 C32H34ClN5O5 606 314

651.15 C36H35ClN6O4 652 315

582.62 C32H31FN6O4 584 316

582.62 C32H31FN6O4 584 317

634.70 C36H35FN6O4 636 318

617.70 C35H35N7O4 619 319

662.80 C37H38N6O4S 664 320

615.72 C37H37N5O4 617 321

646.74 C37H38N6O5 648 322

696.84 C39H48N6O6 698 323

641.72 C37H35N7O4 643 324

580.68 C33H36N6O4 582 325

620.74 C36H40N6O4 622 326

676.74 C33H36N6O8S 678 327

634.70 C36H35FN6O4 636 328

634.70 C36H35FN6O4 636 329

595.69 C34H37N5O5 597 330

625.76 C36H43N5O5 627 331

619.62 C32H31F2N5O6 621 332

658.75 C38H38N6O5 660 333

632.71 C36H36N6O5 634 334

648.55 C32H34BrN5O5 650 335

646.74 C37H38N6O5 648 336

701.81 C40H43N7O5 703 337

608.73 C35H40N6O4 610 338

587.64 C32H34FN5O5 589 339

616.71 C36H36N6O4 618 340

646.74 C37H38N6O5 648 341

595.65 C32H33N7O5 597 342

686.77 C37H43FN6O6 688 343

617.70 C35H35N7O4 619 344

646.74 C37H38N6O5 648 345

631.72 C37H37N5O5 633 346

683.75 C40H37N5O6 685 347

672.77 C39H40N6O5 674 348

605.69 C34H35N7O4 607 349

639.74 C36H41N5O6 641 350

598.65 C32H34N6O6 600 351

617.14 C33H37ClN6O4 619 352

645.75 C38H39N5O5 647 353

658.79 C39H42N6O4 660 354

631.72 C37H37N5O5 633 355

640.73 C38H36N6O4 642 356

687.81 C35H41N7O6S 689 357

629.70 C37H35N5O5 631 358

674.79 C33H34N6O6S2 676 359

617.70 C35H35N7O4 619 360

681.86 C40H51N5O5 683 361

645.75 C38H39N5O5 647 362

618.52 C31H32BrN5O4 620 363

595.69 C34H37N5O5 597 364

651.79 C38H45N5O5 653 365

679.74 C38H38FN5O6 681 366

653.77 C37H43N5O6 655 367

625.71 C35H39N5O6 627 368

598.69 C34H38N4O6 600 369

701.81 C41H43N5O6 703 370

636.51 C31H31BrFN5O4 638 371

621.75 C35H35N5O4S 623 372

646.74 C37H38N6O5 648 373

714.23 C37H36ClN5O6S 716 374

645.75 C38H39N5O5 647 375

682.23 C37H36ClN5O4S 684 376

760.26 C38H38ClN5O8S 762 377

616.71 C36H36N6O4 618 378

616.71 C36H36N6O4 618 379

631.72 C36H37N7O4 633 380

630.74 C37H38N6O4 632 381

772.91 C43H44N6O6S 774 382

646.74 C37H38N6O5 648 383

646.74 C37H38N6O5 648 384

634.70 C36H35FN6O4 636 385

634.70 C36H35FN6O4 636 386

487.55 C27H29N5O4 489 387

692.85 C39H48N8O4 694 388

595.65 C32H33N7O5 597 389

678.76 C33H38N6O8S 680 390

629.70 C34H39N5O7 631 391

599.68 C33H37N5O6 601 392

723.62 C33H36N5Na2O9P 725 393

792.73 C37H43N6Na2O9P 794 394

746.66 C35H37N6Na2O8P 748 395

611.73 C35H41N5O5 613 396

587.64 C32H34FN5O5 589 397

595.73 C35H41N5O4 597 398

583.68 C33H37N5O5 585 399

625.76 C36H43N5O5 627 400

597.70 C34H39N5O5 599 401

703.59 C32H32N7Na2O7P 705 402

553.65 C32H35N5O4 555 403

719.63 C34H36N5Na2O8P 721 404

595.69 C34H37N5O5 597 405

565.66 C33H35N5O4 567 406

711.58 C32H33FN5Na2O8P 713 407

628.63 C32H32N6O8 630 408

732.67 C35H39N6Na2O7P 734 409

728.04 C32H33ClN5Na2O8P 730 410

619.11 C32H35ClN6O5 621 411

600.66 C32H36N6O6 602 412

605.63 C32H33F2N5O5 607 413

743.56 C32H30F2N5Na2O9P 745 414

732.67 C35H39N6Na2O7P 734 415

724.61 C32H35N6Na2O9P 726 416

646.73 C37H38N6O5 648 417

623.70 C35H37N5O6 625 418

725.57 C33H36IN5O6 727 419

719.65 C33H32N5Na2O7PS 721 420

709.66 C32H34N5Na2O7PS 701 421

788.01 C43H57N5O7S 790 422

749.70 C36H42N5Na2O8P 751 423

651.84 C39H49N5O4 653 424

761.93 C40H51N5O8S 763 425

678.58 C31H33N6Na2O7P 680 426

627.71 C33H33N5O6S 629 427

632.71 C36H36N6O5 634 428

646.74 C37H38N6O5 648 429

641.72 C37H35N7O4 643 430

646.74 C37H38N6O5 648 431

556.62 C29H32N8O4 558 432

753.65 C37H34N5Na2O8P 755 433

636.70 C34H36N8O5 638 434

534.62 C28H34N6O5 536 435

548.65 C29H36N6O5 550 436

562.67 C30H38N6O5 564 437

592.70 C31H40N6O6 594 438

604.71 C32H40N6O6 606 439

625.73 C34H39N7O5 627 440

611.71 C33H37N7O5 613 441

611.71 C33H37N7O5 613 442

611.71 C33H37N7O5 613 443

617.73 C31H35N7O5S 619 444

631.76 C32H37N7O5S 633 445

618.72 C30H34N8O5S 620 446

522.62 D488C26H30N6O4S 524 447

572.68 C30H32N6O4S 574 448

572.68 C30H32N6O4S 574 449

573.66 C30H31N5O5S 575 450

598.72 C32H34N6O4S 600 451

587.69 C31H33N5O5S 589 452

574.65 C29H30N6O5S 576 453

574.65 C29H30N6O5S 576 454

574.65 C29H30N6O5S 576 455

586.71 C31H34N6O4S 588 456

557.66 C30H31N5O4S 559 457

571.69 C31H33N5O4S 573 458

585.72 C32H35N5O4S 587 459

599.74 C33H37N5O4S 601 460

529.65 C29H31N5O3S 531 461

543.68 C30H33N5O3S 545 462

557.71 C31H35N5O3S 559 463

571.73 C32H37N5O3S 573 464

615.75 C32H37N7O4S 617 465

615.70 C31H33N7O5S 617 466

614.76 C33H38N6O4S 616 467

614.72 C32H34N6O5S 616 468

600.78 C33H40N6O3S 602 469

600.73 C32H36N6O4S 602 470

657.78 C34H39N7O5S 659 471

670.83 C35H42N8O4S 672 472

586.71 C31H34N6O4S 588 473

628.74 C33H36N6O5S 630 474

641.78 C34H39N7O4S 643 475

597.73 C33H35N5O4S 599 476

599.70 C32H33N5O5S 601 477

585.72 C32H35N5O4S 587 478

583.70 C32H33N5O4S 585 479

569.72 C32H35N5O3S 571 480

584.69 C31H32N6O4S 586 481

612.74 C33H36N6O4S 614 482

626.77 C34H38N6O4S 628 483

615.75 C32H37N7O4S 617 484

629.77 C33H39N7O4S 631 485

629.73 C32H35N7O5S 631 486

611.72 C32H33N7O4S 613 487

630.76 C33H38N6O5S 632 488

616.73 C32H36N6O5S 618

Belows are NMR data of some of the compounds prepared according to the above procedure:

(6S,9aS)-2-allyl-N-benzyl-6-(4-hydroxy-benzyl)-8-((1-(3-nitrobenzyl)-1H-indol-7-yl)methyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 8.06 (d, J=9.0 Hz, 1H), δ 7.65 (d, J=6.0 Hz, 2H), δ 7.44 (t, J=6.0 Hz, 1H), 7.35˜7.20 (m, 6H), δ 7.11˜7.05 (m, 2H), δ 6.95˜6.87 (m, 3H), δ 6.66˜6.62 (m, 4H), δ 5.51˜5.30 (m, 3H), δ 5.02˜4.94 (m, 2H), δ 4.61 (d, J=18.0 Hz, 1H), δ 4.44˜4.25 (m, 3H), δ 3.42˜2.99 (m, 8H).

(6S,9aS)-2-allyl-8-((1-(3-aminobenzyl)-1H-indol-7-yl)methyl)-N-benzyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.63˜7.58 (m, 1H), δ 7.38˜7.20 (m, 5H), δ 7.05˜6.94 (m, 4H), δ 6.87 (d, J=6.0 Hz, 1H), δ 6.67˜6.57 (m, 3H), δ 6.45 (d, J=6.0 Hz, 1H), δ 6.19 (d, J=9.0 Hz, 2H), δ 5.54˜5.38 (m, 3H), 5.32˜5.24 (m, 1H), δ 5.11 (t, J=6.0 Hz, 1H), δ 5.00 (d, J=12.0 Hz, 1H), δ 4.77˜4.65 (m, 2H), δ 4.44˜4.26 (m, 2H), δ 3.39˜3.17 (m, 5H), δ 2.94 (d, J=9.0 Hz, 2H).

(6S,9aR) 2-allyl-8-(2,4-difluoro-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.25-7.36 (m, 7H), 7.04 (d, J=8.4 Hz, 2H), 6.62-6.89 (m, 6H), 5.68-5.82 (m, 3H), 5.16-5.24 (m, 2H), 4.42 (d, J=6.0 Hz, 2H), 4.01-4.06 (m, 1H), 3.38-3.71 (m, 8H), 3.20 (dd, J=3.6, 11.4 Hz, 2H), 2.80-3.02 (m, 4H), 2.46-2.52 (m, 1H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(2,3,4-trimethoxy-benzyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.404˜7.245 (m, 5H), δ 7.001˜6.973 (d, J=8.4 Hz, 2H), 6.958˜6.930 (d, J=8.4 Hz, 1H), 7.742˜7.701 (t, J=6.0 Hz, 1H), 6.675˜6.647 (d, J=8.4 Hz, 2H), 6.647˜6.619 (d, J=8.4 Hz, 2H), 5.695˜5.561 (dt, J=6.6 Hz, J=16.8 Hz, 1H), 5.534˜5.520 (dd, J=4.2 Hz, J=10.8 Hz, 1H), 5.390˜5.340 (dd, J=4.8 Hz, J=10.2 Hz, 1H), 5.284˜5.248 (t, J=5.4 Hz, 1H), 5.175˜5.140 (d, J=10.5 Hz, 1H), 5.080˜5.022 (d, J=17.4 Hz, 1H), 4.882˜4.834 (d, J=17.4 Hz, 1H), 4.486˜4.306 (dt, J=6.0 Hz, J=15.0 Hz, 2H), 3.875 (s, 3H), 3.546˜3.253 (m, 8H).

(6S,9aS) 2-allyl-8-(3,4-dimethoxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.395˜7.233 (m, 6H), δ 6.8314.682 (m, 4H), 6.985˜6.958 (d, J=8.1 Hz, 2H), 6.637˜6.610 (d, J=8.1 Hz, 2H), 5.678˜5.545 (dt, J=6.3 Hz, J=16.8 Hz, 1H), 5.454˜5.405 (dd, J=3.9 Hz, J=10.5 Hz, 1H), 5.323˜5.286 (d, J=5.7 Hz, 1H), 5.162˜5.127 (d, J=10.5 Hz, 1H), 5.028˜4.971 (d, J=16.8 Hz, 1H), 4.916˜4.868 (d, J=14.4 Hz, 1H), 4.467˜4.294 (dt, J=6.3 Hz, J=15.0 Hz, 2H), 5.390˜5.340 (dd, J=4.8 Hz, J=10.2 Hz, 1H), 5.284˜5.248 (t, J=5.4 Hz, 1H), 4.269˜4.221 (d, J=14.4 Hz, 1H), 3.864 (s, 6H), 3.499˜3.223 (m, 7H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-[1-(toluene-4-sulfonyl)-1H-indol-7-ylmethyl]-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz): δ 7.66 (d, J=4.0 Hz, 1H), 7.31-7.48 (m, 6H), 7.16-7.23 (m, 4H), 7.03 (d, J=8.4 Hz, 2H), 6.90 (d, J=7.8 Hz, 1H), 6.67-6.70 (m, 3H), 5.49-5.61 (m, 2H), 5.31-5.47 (m, 2H), 4.92-5.14 (m, 3H), 4.26-4.44 (m, 2H), 3.29-3.50 (m, 6H), 2.32 (s, 3H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(1H-indol-7-ylmethyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 9.95 (s, 1H), 7.63 (d, J=8.1 Hz, 1H), 7.28-7.37 (m, 4H), 7.23-7.25 (m, 1H), 6.90-7.00 (m, 4H), 6.67 (m, 1H), 6.55-6.58 (m, 3H), 5.60 (m, 1H), 5.12-5.28 (m, 4H), 4.93 (d, J=17.1 Hz, 1H), 4.32-4.41 (m, 3H), 3.21-3.39 (m, 8H).

(6S,9aS) 2-allyl-7-(2-fluoro-4-methoxy-benzyl)-5-(4-hydroxy-benzyl)-4,6-dioxo-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 7.39˜7.24 (m, 5H), 6.96 (d, J=8.3 Hz, 2H), 6.79 (s, 1H), 6.73˜6.67 (m, 2H), 6.62˜6.58 (m, 3H), 5.70˜5.57 (m, 1H), 5.45 (dd, J=10.7 Hz 4.0 Hz, 1H), 5.20 (t, J=5.6 Hz, 1H), 5.18 (d, J=10.3 Hz, 1H), 5.08 (d, J=17.1 Hz, 1H), 4.80 (d, J=5.6 Hz, 1H), 4.48˜4.30 (m, 3H), 3.79 (s, 3H), 3.54˜3.25 (m, 8H).

(6S,9aS)-2-allyl-N-benzyl-8-(4-butoxybenzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.73˜7.23 (m, 6H), δ 7.12 (d, J=9.0 Hz, 2H), δ 6.98 (d, J=9.0 Hz, 2H), δ 6.86 (d, J=9.0 Hz, 2H), δ 6.71 (t, J=6.0 Hz, 1H), δ 6.65 (d, J=9.0 Hz, 2H), δ 5.67˜5.48 (m, 2H), δ 5.32 (t, J=6.0 Hz, 1H), δ 5.13 (d, J=12.0 Hz, 2H), δ 5.00 (d, J=3.0 Hz, 1H), δ 4.93 (s, 1H), δ 4.46˜4.30 (m, 2H), δ 3.19 (d, J=18.0 Hz, 1H), δ 3.93 (t, J=9.0 Hz, 2H), δ 3.44˜3.21 (m, 7H), δ 1.78˜1.71 (m, 2H), δ 1.54˜1.41 (m, 2H), δ 0.96 (t, J=15.0 Hz, 3H).

(6S,9aS)-2-allyl-N-benzyl-8-(3-chloro-4-methoxybenzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.39˜7.23 (m, 6H), δ 7.09 (d, J=9.0 Hz, 2H), δ 6.98 (d, J=9.0 Hz, 2H), δ 6.89 (d, J=9.0 Hz, 1H), δ 6.73˜6.53 (m, 3H), δ 5.67˜5.58 (m, 1H), δ 5.38 (dd, J=3.0 Hz, J=9.0 Hz, 1H), δ 5.21 (t, J=6.0 Hz, 1H), δ 5.17 (d, J=12.0 Hz, 1H), δ 5.03 (d, J=15.0 Hz, 1H), δ 4.76 (dd, J=3.0 Hz, J=18.0 Hz, 1H), δ 4.45˜4.29 (m, 3H), δ 3.88 (s, 3H), 3.49˜3.18 (m, 8H).

(6S,9aS)-2-allyl-N-benzyl-8-(3-fluoro-4-methoxybenzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.39˜7.23 (m, 6H), δ 7.09 (d, J=9.0 Hz, 2H), δ 6.98 (d, J=9.0 Hz, 2H), δ 6.89 (d, J=9.0 Hz, 1H), δ 6.73˜6.53 (m, 3H), δ 5.67˜5.58 (m, 1H), δ 5.38 (dd, J=3.0 Hz, J=9.0 Hz, 1H), δ 5.21 (t, J=6.0 Hz, 1H), δ 5.17 (d, J=12.0 Hz, 1H), δ 5.03 (d, J=15.0 Hz, 1H), δ 4.76 (dd, J=3.0 Hz, J=18.0 Hz, 1H), δ 4.45˜4.29 (m, 3H), δ 3.88 (s, 3H), 3.49˜3.18 (m, 8H).

(6S,9aS) 2-allyl-7-(4-allyloxy-benzyl)-5-(4-hydroxy-benzyl)-4,6-dioxo-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 7.39˜7.23 (m, 4H), 7.15 (d, J=8.6 Hz, 2H), 6.98 (d, J=8.4 Hz, 2H), 6.89 (brs, OH), 6.88 (d, J=8.4 Hz, 2H), 6.70 (t, J=6.0 Hz, NH), 6.63 (d, J=8.4 Hz, 2H), 6.10˜5.97 (m, 1H), 5.67˜5.53 (m, 1H), 5.48˜5.26 (m, 4H), 5.14 (d, J=10.3 Hz, 1H), 4.98 (d, J=17.2 Hz, 1H), 4.90 (d, J=14.4 Hz, 1H), 4.52 (d, J=5.3 Hz, 2H), 4.46˜4.29 (m, 2H), 4.25 (d, J=4.4 Hz, 1H), 3.49˜3.20 (m, 8H).

(6S,9aS) 2-allyl-8-(2-bromo-pyridin-3-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.29-3.40 (m, 4H), 3.50-3.59 (m, 4H), 4.39 (qd, J=5.9 Hz, 2H), 4.61 (d, J=15.8 Hz, 1H), 4.85 (d, J=15.8 Hz, 1H), 5.16 (d, 1H), 5.21 (d, 1H), 5.32 (t, J=5.1 Hz, 1H), 5.48 (dd, J=3.7 Hz, J=10.6 Hz, 1H), 5.60-5.69 (m, 1H), 6.68 (d, J=8.3 Hz, 2H), 6.73 (t, J=5.9 Hz, NH), 6.94 (d, J=8.3 Hz, 2H), 7.07 (brs, OH), 7.23-7.39 (m, 7H), 8.30 (d, J=2.9 Hz, 1H).

(6S,9aS) 2-allyl-8-(3-bromo-4-methoxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.17 (dd, J=4.1 Hz, J=11.7 Hz, 1H), 3.26-3.46 (m, 7H), 3.87 (s, 3H), 4.28-4.35 (m, 2H), 4.43 (dd, J=5.9 Hz, J=14.8 Hz, 1H), 4.73 (d, J=15 Hz, 1H), 5.05 (d, J=15 Hz, 1H), 5.29 (t, J=5.6 Hz, 1H), 5.34 (dd, J=4 Hz, J=10.6 Hz, 1H), 5.57-5.62 (m, 1H), 6.53 (s, OH), 6.61 (d, J=8.4 Hz, 1H), 6.69 (t, J=6 Hz, NH), 6.83 (d, J=8.4 Hz, 1H), 6.95 (d, J=8.4 Hz, 2H), 7.11 (dd, J=2 Hz, J=8.4 Hz, 1H), 7.28-7.38 (m, 5H), 7.44 (d, J=2.1 Hz, 1H).

(6S,9aS) 2-allyl-8-(4-tert-butyl-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 1.3 (s, 9H), 3.19-3.44 (m, 8H), 4.26-4.36 (m, 2H), 4.39 (dd, J=5.9 Hz, J=14.9 Hz, 1H), 4.88 (d, J=14.9 Hz, 1H), 5.12 (d, J=10.3 Hz, 1H), 5.32 (t, J=5.8 Hz, 1H), 5.45 (dd, J=4.1 Hz, J=10.7 Hz, 1H), 5.55-5.64 (m, 1H), 6.13 (s, OH), 6.62 (d, J=8.4 Hz, 2H), 6.72 (t, J=6 Hz, NH), 7.01 (d, J=8.4 Hz, 2H), 7.17 (d, J=8.2 Hz, 2H), 7.29-7.40 (m, 7H).

(6S,9aS) 2-allyl-8-[4-fluoro-3-(2-morpholin-4-yl-ethoxy)-benzyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 207-2.73 (m, 2H), 2.80-2.94 (m, 4H), 3.29-3.35 (m, 2H), 3.42-3.55 (m, 5H), 3.57 (d, J=16.9 Hz, 1H), 3.74-3.87 (m, 5H), 4.05-4.08 (m, 1H), 4.16 (dd, J=5.4 Hz, 1H), 4.22-4.26 (m, 1H), 4.43 (dd, J=6.7 Hz, 1H), 4.81 (dd, J=3 Hz, J=10.5 Hz, 1H), 5.17-5.21 (m, 3H), 5.41 (d, J=15.4 Hz, 1H), 5.64-5.68 (ddd. 1H), 6.47 (d, J=6.6 Hz, 1H), 6.58 (t, J=6.0 Hz, NH), 6.63 (d, J=7.6 Hz, 2H), 6.84 (d, J=7.6 Hz, 2H), 7.01 (dd, J=8.3 Hz, 1H), 7.23-7.26 (m, 2H), 7.30 (t, J=5.5 Hz, 1H), 7.39 (t, J=5.5 Hz, 2H).

(6S,9aS)-2-allyl-N-benzyl-8-(4-ethoxybenzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.40˜7.23 (m, 4H), δ 7.15 (d, J=9.0 Hz, 2H), δ 6.98 (d, J=6.0 Hz, 2H), δ 6.85 (d, J=6.0 Hz, 2H), δ 6.69 (t, J=6.0 Hz, 1H), δ 6.64˜6.61 (m, 2H), δ 5.65˜5.58 (m, 1H), δ 5.45 (dd, J=3.0 Hz, J=9.0 Hz, 1H), δ 5.32˜5.29 (m, 1H), δ 5.14 (d, J=9.0 Hz, 1H), δ 5.01˜4.86 (m, 2H), δ 4.47˜4.23 (m, 3H), δ 4.02 (q, J=15.0 Hz, 2H), δ 3.49˜3.19 (m, 7H), δ 1.40 (t, J=6.0 Hz, 3H).

(6S,9aS)-2-allyl-N-benzyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(4-(pentyloxy)benzyl)-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.39˜7.23 (m, 4H), δ 7.15 (d, J=9.0 Hz, 2H), δ 6.98 (d, J=6.0 Hz, 2H), δ 6.86 (d, J=9.0 Hz, 2H), δ 6.69 (t, J=6.0 Hz, 1H), δ 6.63 (d, J=9.0 Hz, 2H), δ 5.65˜5.55 (m, 1H), δ 5.45 (dd, 3.0 Hz, J=9.0 Hz, 1H), 65.30 (t, J=6.0 Hz, 1H), 65.14 (d, J=9.0 Hz, 1H), δ 5.01˜4.88 (m, 2H), δ 4.47˜4.21 (m, 3H), δ 3.93 (t, J=6.0 Hz, 2H), δ 3.44˜3.19 (m, 7H), δ 1.82˜1.73 (m, 2H), δ 1.46˜1.34 (m, 4H), δ 0.93 (t, J=6.0 Hz, 3H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(4-propoxy-benzyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.390˜7.227 (m, 5H), 7.156˜7.127 (d, J=8.7 Hz, 2H), 6.989˜6.961 (d, J=8.4 Hz, 2H), 6.868˜6.840 (d, J=8.4 Hz, 2H), 6.717˜6.677 (t, J=6.0 Hz, 1H), 6.640˜6.612 (d, J=8.4 Hz, 2H), 5.667˜5.533 (dt, J=6.6 Hz, J=12.6 Hz, 1H), 5.460˜5.412 (dd, J=3.9 Hz, J=10.5 Hz, 1H), 5.321˜5.283 (t, J=11.4 Hz, 1H), 5.010˜4.953 (d, J=17.1 Hz, 1H), 4.910˜4.862 (d, J=14.4 Hz, 1H), 4.460˜3.876 (dd, J=6.6 Hz, J=6.6 Hz, 2H), 3.443˜3.204 (m, 7H), 1.827˜1.734 (m, 4H), 1.048˜0.999 (t, J=7.2 Hz, 3H).

(6S,9aS) 2-allyl-5-(4-hydroxy-benzyl)-4,6-dioxo-7-phenethyl-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 7.40˜7.17 (m, 10H), 6.95 (d, J=8.4 Hz, 2H), 6.67 (t, J=4.0 Hz, NH), 6.62 (d, J=8.5 Hz, 2H), 6.38 (s, OH), 5.67˜5.54 (m, 1H), 5.28˜5.07 (m, 4H), 4.46˜4.29 (m, 2H), 3.83˜3.74 (m, 1H), 3.49˜3.10 (m, 9H), 3.04˜2.78 (m, 2H).

(6S,9aS)-8-((3-acetyl-1-tosyl-1H-indol-7-yl)methyl)-2-allyl-N-benzyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2,1-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 8.360 (s, 1H), δ 8.39 (d, J=8.1 Hz, 1H), δ 7.50 (d, J=8.4 Hz, 2H), δ 7.31˜7.16 (m, 8H), δ 6.96˜6.86 (m, 3H), δ 6.74˜6.61 (m, 3H), δ 5.58˜5.51 (m, 2H), δ 5.34 (t, J=5.7 Hz, 1H), δ 5.16˜4.99 (m, 3H), δ 4.82 (d, J=16.2 Hz, 1H), δ 4.42˜4.22 (m, 2H), δ 3.47˜3.26 (m, 7H), δ 3.07˜3.02 (m, J=4.2, J=12.0 Hz, 1H), δ 2.58 (s, 3H), δ 2.36 (s, 3H).

(6S,9aS)-8-((3-acetyl-1H-indol-7-yl)methyl)-2-allyl-N-benzyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2,1-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 8.42˜3.96 (d, J=7.9 Hz, 1H), δ 8.01 (s, 1H), δ 7.91˜7.90 (d, J=3.0 Hz, 1H), δ 7.41˜7.18 (m, 4H), δ 7.07 (d, J=7.2 Hz, 1H), δ 6.91 (d, J=8.4 Hz, 2H), δ 6.75 (t, J=6.1 Hz, 1H), δ 6.60 (d, J=8.4 Hz, 2H), δ 5.65˜5.56 (m, 1H), δ 5.42 (t, J=7.2 Hz, 1H), δ 5.29˜5.15 (m, 3H), δ 4.97 (d, J=17.4 Hz, 1H), δ 4.48˜4.32 (m, 3H), δ 3.43˜3.22 (m, 7H), δ 2.88 (s, 3H).

(6S,9aS)-2-allyl-8-(2-(allyloxy)benzyl)-N-benzyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.39˜7.19 (m, 7H), δ 6.98˜6.93 (m, 2H), δ 6.86 (d, J=8.1 Hz, 2H), δ 6.72 (t, J=6.0 Hz, 1H), δ 6.62 (d, J=8.4 Hz, 2H), δ 6.06˜5.96 (m, 1H), δ 5.65˜5.56 (m, 1H), δ 5.48 (dd, J=4.2 Hz, J=10.5 Hz, 1H), δ 5.40˜5.23 (m, 3H), δ 5.13 (d, J=10.2 Hz, 1H), δ 5.00 (d, J=17.1 Hz, 1H), δ 4.88 (d, J=14.7 Hz, 1H), δ 4.59˜4.53 (m, 3H), δ 4.46˜4.31 (m, 2H), δ 3.53˜3.27 (m, 7H).

(6S,9aS) 2-allyl-8-(2-allyloxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 1.87-1.91 (m, 4H), 3.04-3.14 (m, 5H), 3.27-3.48 (m, 7H), 4.32 (dd, J=6 Hz, J=14.9 Hz, 1H), 4.39 (dd, J=6 Hz, J=14.9 Hz, 1H), 4.59 (d, J=15.2 Hz, 1H), 4.90-4.97 (m, 2H), 5.07 (d, J=10.3 Hz, 1H), 5.38 (t, J=5.6 Hz, 1H), 5.48-5.58 (m, 2H), 6.65-6.69 (m, 3H), 6.65 (d, J=9 Hz, 3H), 6.94-6.98 (m, 2H), 7.01 (d, J=9 Hz, 3H), 7.23-7.38 (m, 6H).

(6S,9aS) 2-allyl-5-(4-hydroxy-benzyl)-4,6-dioxo-7-(3-phenyl-allyl)-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, D₂O): δ 7.39˜7.24 (m, 10H), 6.98 (d, J=8.5 Hz, 2H), 6.91 (s, OH), 6.72 (t, J=6.0 Hz, NH), 6.61 (d, J=8.3 Hz, 2H), 6.52 (d, J=15.9 Hz, 1H), 6.18˜6.08 (m, 1H), 5.71˜5.58 (m, 1H), 5.47 (dd, J=10.7 Hz 4.0 Hz, 1H), J=5.6 Hz, 1H), 5.17 (d, J=8.8 Hz, 1H), 5.12 (d, J=15.9 Hz, 1H), 4.48˜4.31 (m, 3H), 4.03 (dd, J=15.0 Hz 7.5 Hz, 1H), 3.59˜3.28 (m, 9H).

(6S,9aS)-2-allyl-N-benzyl-6-(4-hydroxy-benzyl)-8-((6-nitrobenzo[d][1,3]dioxol-5-yl)methyl)-4,7-dioxo-hexahydro-2,1-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.50 (s, 1H), δ 7.34˜7.18 (m, 5H), δ 7.96 (d, J=8.4 Hz, 2H), δ 6.70˜6.54 (m, 3H), δ 6.06 (d, J=13.2 Hz, 2H), δ 5.66˜5.55 (m, 1H), δ 5.3˜15.12 (m, 5H), δ 4.60 (d, J=16.5 Hz, 1H), δ 4.40˜4.24 (m, 2H), δ 3.59˜3.18 (m, 8H).

(6S,9aS) 2-allyl-8-(2,2-difluoro-benzo[1,3]dioxol-4-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.28-3.35 (m, 5H), 3.47-3.62 (m, 3H), 4.32 (dd, J=6.0 Hz, 1H), 4.41 (dd, J=6.0 Hz, 1H), 4.53 (d, J=15.0 Hz, 1H), 4.86 (d, J=15.0 Hz, 1H), 5.10 (d, J=17.4 Hz, 1H), 5.19 (d, J=10 Hz, 1H), 5.30 (t, J=5.6 Hz, 1H), 5.45 (dd, J=4.0 Hz, J=10.0 Hz, 1H), 5.59-5.65 (m, 1H), 6.65 (d, J=8.4 Hz, 2H), 6.71 (t, J=5.8 Hz, NH), 6.97-7.10 (m, 4H), 7.24-7.40 (m, 6H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(1H-indol-7-ylmethyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid (pyridin-2-ylmethyl)-amide

¹H-NMR (300 MHz, CDCl₃): δ 3.26-3.51 (m, 8H), 4.29 (d, J=14 Hz, 1H), 4.48 (dd, J=5.4 Hz, J=16 Hz, 1H), 4.51 (dd, J=5.4 Hz, J=16 Hz, 1H), 4.97 (d, J=17 Hz, 1H), 5.13 (d, J=10 Hz, 1H), 5.24-5.37 (m, 3H), 5.70-5.72 (m, 1H), 6.54 (d, J=8.4 Hz, 2H), 6.93 (d, J=8.4 Hz, 1H), 6.97-7.01 (m, 1H), 7.20-7.28 (m, 4H), 7.4 (t, J=5.5 Hz, 1H), 7.62 (d, J=8 Hz, 1H), 7.67-7.72 (m, 1H), 8.54 (d, J=4.8 Hz, 1H), 9.96 (s, NH).

(6S,9aS) 2-allyl-8-(2-difluoromethoxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.10-7.39 (m, 10H), 6.95 (d, J=8.4 Hz, 2H), 6.71 (t, J=5.7 Hz, 1H), 6.63 (d, J=8.4 Hz), 5.56-5.66 (m, 1H), 5.43 (dd, J=3.9 Hz, 10.5 Hz, 1H), 5.30 t, J=5.4 Hz, 1H), 5.08-5.16 (m, 2H), 4.80 (d, J=15 Hz, 1H), 4.59 (d, J=15 Hz, 1H), 4.29-4.46 (m, 2H), 3.25-3.54 (m, 8H).

(6S,9aS)-2-allyl-N-benzyl-8-((3-(cyclopropanecarbonyl)-1-tosyl-1H-indol-7-yl)methyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 8.56 (s, 1H), δ 8.34 (d, J=7.5 Hz, 1H), δ 7.56 (d, J=8.4 Hz, 2H), δ 7.36˜7.20 (m, 7H), δ 7.00 (d, J=8.4 Hz, 1H), δ 6.92 (d, J=7.5 Hz, 1H), δ 6.72 (t, J=6.0 Hz, 1H), δ 6.65 (d, J=8.1 Hz, 2H), δ 6.52 (s, 1H), δ 5.83˜5.71 (m, 1H), δ 5.59 (dd, J=6.0 Hz, J=11.1 Hz, 1H), δ 5.39 (t, J=5.7 Hz, 1H), δ 5.20˜4.87 (m, 4H), δ 4.67˜4.27 (m, 2H), δ 3.57˜3.29 (m, 7H), δ 3.08 (dd, J=4.2 Hz, J=12.0 Hz, 1H), δ 2.54˜2.48 (m, 1H), δ 1.27˜1.24 (m, 2H), δ 1.07˜1.03 (m, 2H).

(6S,9aS) 2-allyl-8-[1-(4-chloro-benzenesulfonyl)-1H-indol-7-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.614˜7.601 (d, J=12.0 Hz, 1H), 7.526˜7.498 (d, J=8.4 Hz, 2H), 7.434˜7.410 (d, J=7.2 Hz, 1H), 7.361˜7.218 (m, 8H), 6.954˜6.929 (d, J=7.5 Hz, 1H), 6.718˜6.670 (m, 3H), 5.682˜5.506 (m, 2H), 5.541˜5.342 (m, 2H), 5.155˜5.091 (dd, J=10.5 Hz, J=10.5 Hz, 1H), 5.034˜5.924 (dd, J=16.5 Hz, J=16.5 Hz, 1H), 4.455˜4.462 (dt, J=6.0 Hz, J=15.0 Hz, 2H), 3.515˜3.318 (m, 6H), 3.130˜3.077 (dd, J=4.2 Hz, J=12.0 Hz, 1H).

(6S,9aS)-2-allyl-N-benzyl-8-((3-(cyclopropanecarbonyl)-1H-indol-7-yl)methyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 8.42 (d, J=7.8 Hz, 1H), δ 8.04 (d, J=3.0 Hz, 2H), δ 7.40˜7.17 (m, 5H), δ 7.07 (d, J=6.6 Hz, 1H), δ 6.92 (d, J=8.4 Hz, 1H), δ 6.77 (t, J=6.0 Hz, 1H), δ 6.59 (d, J=8.4 Hz, 2H), δ 5.64˜5.55 (m, 1H), δ 5.45 (t, J=6.0 Hz, 1H), δ 5.35˜5.26 (m, 2H), δ 5.16 (d, J=10.2 Hz, 1H), δ 4.95 (d, 17.1 Hz, 1H), δ 4.46˜4.29 (m, 3H), δ 3.43˜3.20 (m, 8H), δ 2.51˜2.44 (m, 1H), δ 1.26˜1.20 (m, 2H), δ 0.97˜0.92 (m, 2H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-prop-2-ynyl-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.23˜7.38 (m, 5H), 6.91 (d, J=8.4 Hz, 2H), 6.75 (s, 1H), 6.70 (t, J=6.0 Hz, 1H), 6.57 (d, J=8.4 Hz, 2H), 5.59˜5.73 (m, 1H), 5.42 (dd, J=4.2 Hz, 10.8 Hz, 1H), 5.17˜5.28 (m, 3H), 4.29˜4.56 (m, 3H), 3.99˜4.05 (m, 1H), 3.37˜3.68 (m, 8H).

3-[(6S,9aS) 2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-benzoic acid methyl ester

¹H NMR (CDCl₃): δ 7.993˜7.957 (m, 1H), 7.906 (s, 1H), 7.446˜7.245 (m, 7H), 6.991˜6.963 (d, J=8.4 Hz, 2H), 6.702˜6.662 (t, J=6.0 Hz, 1H), 6.629˜6.601 (d, J=8.4 Hz, 2H), 5.666˜5.532 (dt, J=6.3 Hz, J=8.1 Hz, 1H), 5.467˜5.417 (dd, J=4.2 Hz, J=10.8 Hz, 1H), 5.348˜5.310 (t, J=5.7 Hz, 1H), 5.145˜5.110 (d, J=10.5 Hz, 1H), 5.014˜4.957 (d, J=17.1 Hz, 1H), 4.919˜4.870 (d, J=14.7 Hz, 1H), 4.483˜4.454 (d, J=8.7 Hz, 1H), 4.483˜4.282 (dd, J=5.7 Hz, J=14.7 Hz, 2H), 3.911 (s, 3H), 3.454˜3.212 (m, 8H).

3-[(6S,9aS) 2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-benzoic acid

¹H NMR (CDCl₃): δ 7.976˜7.954 (d, J=6.6 Hz 1H), 7.665 (s, 1H), 7.426˜7.211 (m, 6H), 7.006˜6.981 (d, =7.5 Hz, 2H), 6.847˜6.739 (dd, J=8.4 Hz, J=13.2 Hz, 2H), 6.574˜6.535 (t, J=5.7 Hz, 1H), 5.616˜5.504 (dt, J=4.2 Hz, J=6.3 Hz, 1H), 5.209˜4.859 (m, 5H), 4.235˜3.939 (m, 4H), 3.539˜3.094 (m, 4H).

(6S,9aS) 2-allyl-8-benzo[b]thiophen-3-ylmethyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 3.18˜3.3 (m, 5H), 3.34˜3.41 (m, 3H), 4.27 (dd, J=6 Hz, J=15 Hz, 1H), 4.36 (dd, J=6 Hz, J=15 Hz, 1H), 4.47 (d, J=14.7 Hz, 1H), 4.70 (d, J=17.1 Hz, 1H), 4.99 (d, J=10.5 Hz, 1H), 5.26˜5.34 (m, 2H), 5.37˜5.54 (m, 2H), 6.56 (d, J=8.4 Hz, 2H), 6.94 (d, J=8.4 Hz, 2H), 7.19˜7.42 (m, 8H), 7.82˜7.89 (m, 2H).

2-{3-[(6S,9aS) 2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-benzoylamino}-pentanedioic acid

¹H NMR (DMSO-D6): δ 8.180˜8.108 (m, 1H), 7.812˜7.227 (m, 10H), 6.881˜6.853 (d, J=8.4 Hz, 2H), 6.599˜6.572 (d, J=8.4 Hz, 2H), 5.873˜5.737 (m, 1H), 5.352˜5.288 (m, 1H), 5.105˜5.036 (m, 3H), 4.852˜4.803 (d, J=13.2 Hz, 1H), 4.384˜4.142 (m, 4H), 3.689˜3.477 (m, 4H), 3.283˜3.028 (m, 5H), 2.411˜1.860 (m, 4H).

(6S,9aS) 2-allyl-5-(4-hydroxy-benzyl)-7-[2-(4-methoxy-phenyl)-pyridin-3-ylmethyl]-4,6-dioxo-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 8.59 (dd, J=4.8 Hz 1.5 Hz, 1H), 7.42˜7.20 (m, 9H), 6.97˜6.93 (m, 4H), 6.75 (brs, OH), 6.66 (t, J=5.9 Hz, NH), 6.60 (d, J=8.5 Hz, 2H), 5.64˜5.50 (m, 1H), 5.41 (dd, J=10.6 Hz 3.7 Hz, 1H), 5.24 (t, J=5.5 Hz, 1H), 5.13 (d, J=9.8 Hz, 1H), 5.01 (d, J=17.1 Hz, 1H), 4.86 (d, J=15.6 Hz, 1H), 4.70 (d, J=15.5 Hz, 1H), 4.43˜4.25 (m, 2H), 3.83 (s, 3H), 3.46˜3.18 (m, 7H), 2.92 (dd, J=11.8 Hz 3.9 Hz, 1H)

(6S,9aS) 8-[3-Acetyl-1-(4-chloro-benzenesulfonyl)-1H-indol-7-ylmethyl]-2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 8.34 (s, 2H) δ 7.60 (d, J=9.7 Hz, 2H) δ 7.36˜7.21 (m, 6H) δ 6.99 (d, J=8.2 Hz, 2H) δ 6.93 (d, J=8.3 Hz, 1H) δ 6.73˜6.65 (m, 1H) δ 5.66˜5.52 (m, 2H) δ 5.37 (t, J=5.6 Hz, 1H) δ 5.29 (s, 1H) δ 5.24˜5.04 (m, 3H) δ 4.81 (d, J=6.2 Hz, 1H) δ 4.45˜4.26 (dd, J=5.0 Hz, J=5.0 Hz, 2H) δ 3.51˜3.31 (m, 7H) δ 3.71˜3.61 (m, 2H) δ 3.13˜3.07 (dd, J=4.0 Hz, J=3.9 Hz, 1H) δ 2.58 (s, 3H)

(6S,9aS)-2-allyl-N-benzyl-6-(4-hydroxy-benzyl)-8-(2-(methylthio)benzyl)-4,7-dioxo-hexahydro-2,1-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃, 300 MHz) δ 7.38˜7.23 (m, 6H), δ 7.15 (t, J=7.5 Hz, 1H), δ 7.08 (d, J=7.5 Hz, 2H), δ 7.01 (d, J=8.4 Hz, 2H), δ 6.70˜6.63 (m, 3H), δ 6.37 (s, 1H), δ 5.63˜5.49 (m, 1H), δ 5.35 (t, J=5.4 Hz, 1H), δ 5.10 (d, J=10.2 Hz, 1H), δ 4.98˜4.88 (m, 3H), δ 4.65 (d, J=15.0 Hz, 1H), δ 4.47˜4.27 (m, 2H), δ 3.47˜3.28 (m, 8H), δ 2.45 (s, 3H)

(6S,9aS) 2-allyl-8-dibenzofuran-4-ylmethyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.87˜7.95 (m, 2H), 7.59 (d, J=8.1 Hz, 1H), 7.21˜7.38 (m, 9H), 7.45 (t, J=7.2 Hz, 1H), 6.94 (d, J=8.4 Hz, 2H), 6.65 (t, J=6.0 Hz, 1H), 6.54 (d, J=8.4 Hz, 2H), 5.46˜5.51 (m, 2H), 5.34 (t, J=5.7 Hz, 1H), 5.17 (m, 1H), 4.75˜4.97 (m, 3H), 4.32˜4.41 (m, 2H), 3.22˜3.58 (m, 8H)

(2S,6S,9aS) 2-allyl-7-(2,3-dimethoxy-benzyl)-5-(4-hydroxy-benzyl)-4,6-dioxo-octahydro-[1,7]naphthyridine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 7.38˜7.29 (m, 3H), 7.19 (d, J=7.1 Hz, 2H), 6.98 (dd, J=8.1 Hz 8.1 Hz, 1H), 6.88˜6.77 (m, 4H), 6.51 (d, J=8.4 Hz, 2H), 5.68˜5.55 (m, 1H), 5.26 (t, J=5.0 Hz, 1H), 5.05 (d, J=9.7 Hz, 1H), 5.00 (d, J=18.6 Hz, 1H), 4.87 (d, J=14.5 Hz, 1H), 4.58˜4.25 (m, 6H), 3.84 (s, 3H), 3.69 (s, 3H), 3.47˜3.34 (m, 2H), 3.26˜3.20 (m, 2H), 2.58˜2.41 (m, 2H), 2.23 (t, J=7.4 Hz, 2H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(2-methanesulfonyl-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.04 (d, J=7.8 Hz, 1H), δ 7.62 (t, J=6.6 Hz, 1H), δ 7.46 (d, J=7.5 Hz, 1H), δ 7.38˜7.17 (In, 3H), δ 6.97˜6.87 (m, 3H), δ 6.75˜6.66 (m, 3H), δ 5.71˜5.52 (m, 2H), δ 5.36˜5.29 (m, 2H), δ 5.21˜5.12 (m, 2H), δ 4.85 (d, J=16.2 Hz, 1H), δ 4.46˜4.29 (m, 2H), δ 3.70˜3.32 (m, 8H), δ 3.14 (s, 3H)

(6S,9aS) 2-allyl-5-(4-hydroxy-benzyl)-7-[2-(4-hydroxy-phenyl)-pyridin-3-ylmethyl]-4,6-dioxo-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 8.54˜8.45 (m, 1H), 7.47 (d, J=7.8 Hz, 1H), 7.34˜7.18 (m, 8H), 6.89 (d, J=8.2 Hz, 2H), 6.66˜6.63 (m, 3H), 6.59 (d, J=8.3 Hz, 2H), 5.60˜5.47 (m, 1H), 5.16˜5.07 (m, 4H), 4.96 (d, J=17.3 Hz, 1H), 4.45 (d, J=15.7 Hz, 1H), 4.40˜4.21 (m, 2H), 3.46˜3.12 (m, 7H), 2.87˜2.83 (m, 1H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(1-methyl-1H-indol-3-ylmethyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carb oxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.19 (d, J=16.8 Hz, 1H), 3.27˜3.40 (m, 7H), 3.75 (s, 3H), 4.27 (dd, J=6 Hz, J=15 Hz, 1H), 4.40˜4.46 (m, 2H), 4.75 (d, J=17 Hz, 1H), 5.02 (d, J=10.2 Hz, 1H), 5.13 (d, J=14.4 Hz, 1H), 5.26 (t, J=5.7 Hz, 1H), 5.38 (dd, J=4.5 Hz, J=9.9 Hz, 1H), 5.48˜5.61 (m, 1H), 5.97 (s, OH), 6.57 (d, J=8.4 Hz, 2H), 6.67 (d, J=6 Hz, NH), 6.97 (d, J=8.4 Hz, 3H), 7.13 (t, J==7.5 Hz, 1H), 7.29˜7.39 (m, 6H), 7.65 (d, J=8.4 Hz, 1H)

(6S,9aS) 2-allyl-8-[2-(4-chloro-phenylsulfanyl)-benzyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.391˜7.073 (m, 16H), 6.993˜6.965 (d, J=8.4 Hz, 2H), 7.906 (s, 1H), 7.446˜7.245 (m, 7H), 6.991˜6.963 (d, J=8.4 Hz, 2H), 6.719˜6.679 (t, J=−6.0 Hz, 1H), 6.652˜6.624 (d, J=8.4 Hz, 2H), 5.660˜5.526 (dt, J=6.3 Hz, J=16.8 Hz, 1H), 5.500˜5.452 (dd, J=3.9 Hz, J=10.5 Hz, 1H), 5.338˜5.303 (t, J=5.1 Hz, 1H), 5.148˜5.114 (d, J=10.1 Hz, 1H), 5.043˜4.986 (d, J=17.1 Hz, 1H), 4.835˜4.824 (d, J=0.3 Hz, 1H), 4.477˜4.283 (dd, J=3.0 Hz, J=5.7 Hz, 2H), 3.485˜3.125 (m, 8H),

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-[1-(toluene-4-sulfonyl)-1H-indol-3-ylmethyl]-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.969˜7.942 (d, J=83 Hz, 1H), 7.782˜7.754 (d, J=8.4 Hz, 2H), 7.626˜7.600 (d, J=7.8 Hz, 1H), 7.483 (s, 1H), 7.399˜7.180 (m, 11H), 6.978˜6.950 (d, J=8.4 Hz, 2H), 6.691˜6.650 (t, J=6.0 Hz, 1H), 6.631˜6.603 (d, J=8.4 Hz, 2H), 5.663˜5.466 (m, 1H), 5.319˜5.038 (m, 4H), 4.882˜4.825 (d, J=17.1 Hz, 1H), 4.481˜4.378 (m, 3H), 3.460˜3.247 (m, 8H), 2.284 (s, 3H)

(6S,9aS) 2-allyl-8-[2-(4-chloro-benzenesulfonyl)-benzyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.156˜8.126 (dd, J=1.2 Hz, J=7.8 Hz, 1H), 7.780˜7.751 (d, J=6.9 Hz, 2H), 7.622˜7.223 (m, 10H), 7.137˜7.112 (d, J=7.5 Hz, 1H), 6.994˜6.966 (d, J=8.4 Hz, 2H), 6.731˜6.691 (t, J=6.0 Hz, 1H), 6.669˜6.641 (d, J=8.4 Hz, 2H), 5.689˜5.555 (dt, J=6.6 Hz, J=10.5 Hz, 1H), 5.511˜5.462 (dd, J=3.9 Hz, J=10.8 Hz, 1H), 5.362˜5.327 (t, J=5.3 Hz, 1H), 5.196˜5.161 (d, J=10.5 Hz, 1H), 5.134˜5.107 (d, J=8.1 Hz, 1H), 5.077˜5.054 (d, J=6.9 Hz, 1H), 4.841˜4.788 (d, J=15.9 Hz, 1H), 4.461˜4.273 (dd, J=6.3 Hz, J=15.0 Hz, 2H), 3.519˜3.322 (m, 8H), 4.461˜4.273 (dd, J=3.6 Hz, J=11.7 Hz, 1H)

Toluene-4-sulfonic acid 2-[(6S,9aS) 2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-6-methoxy-phenyl ester

¹H NMR (CDCl₃, 300 MHz) δ 7.86 (d, J=8.7 Hz), 7.52 (d, J=7.2 Hz, 2H), 7.19-7.39 (m, 6H), 7.00 (d, J=8.4 Hz, 2H), 6.71-6.84 (m, 3H), 6.64 (d, J=8.4 Hz, 2H), 5.50-5.67 (m, 2H), 5.36 (t, J=5.4 Hz, 1H), 5.30 (s, 1H), 5.07-5.17 (m, 2H), 4.76-4.93 (m, 2H), 4.30-4.47 (m, 2H), 3.27-3.61 (m, 11H)

(6S,9aS) 2-allyl-8-(3-allyloxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.23 (d, J=17 Hz, 1H), 3.30-3.37 (m, 4H), 3.41-3.49 (m, 3H), 4.27 (dd, J=6 Hz, J=15 Hz, 1H), 4.38 (dd, J=6 Hz, J=1 Hz, 1H), 4.49-4.56 (m, 3H), 4.78 (d, J=15 Hz, 1H), 4.95 (d, J=17 Hz, 1H), 5.07 (d, J=10 Hz, 1H), 5.19-5.27 (m, 2H), 5.30 (dd, J=1.5 Hz, J=17.4 Hz, 1H), 5.38 (dd, J=4.2 Hz, J=10.8 Hz, 1H), 5.51-5.67 (m, 1H), 5.92-6.02 (m, 1H), 6.35 (s, OH), 6.57 (d, J=8.4 Hz, 2H), 6.64 (t, J=6.3 Hz, NH), 6.81 (d, J=8.1 Hz, 1H), 6.92 (d, J=8.4 Hz, 3H), 7.16-7.20 (m, 3H), 7.27-7.36 (m, 4H)

(6S,9aS) 2-allyl-8-(3-tert-butyl-2-methoxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 1.345 (s, 9H), 3.08 (dd, J=3.9 Hz, J=12 Hz, 1H), 3.22 (d, J=17.1 Hz, 1H), 3.32-3.43 (m, 6H), 3.72 (s, 3H), 4.24 (dd, J=6 Hz, J=15 Hz, 1H), 4.37 (dd, J=6 Hz, J=15 Hz, 1H), 4.47 (d, J=15 Hz, 1H), 4.87 (d, J=18 Hz, 1H), 5.04-5.11 (m, 2H), 5.34 (t, J=5.7 Hz, 1H), 5.49-5.58 (m, 2H), 6.61-6.67 (m, 3H), 6.85 (s, OH), 6.90-6.93 (m, 1H), 6.98-7.02 (m, 3H), 7.19-7.23 (m, 4H), 7.30-7.36 (m, 2H)

(6S,9aS) 2-allyl-5-(4-hydroxy-benzyl)-4,6-dioxo-7-(4-pyrrolidin-1-yl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-3′-ylmethyl)-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 8.22 (dd, J=4.8 Hz 1.5 Hz, 1H), 7.38˜7.21 (m, 6H), 7.02 (d, J=8.4 Hz, 2H), 6.93 (dd, J=7.6 Hz 4.9 Hz, 1H), 6.77˜6.63 (m, 3H), 5.68˜5.54 (m, 1H), 5.42 (dd, J=11.4 Hz 3.9 Hz, 1H), 5.36 (t, J=5.2 Hz, 1H), 5.15 (d, J=10.3 Hz, 1H), 5.07 (d, J=17.0 Hz, 1H), 4.78 (d, J=15.4 Hz, 1H), 4.48 (d, J=15.4 Hz, 1H), 4.43˜4.26 (m, 2H), 3.50˜3.24 (m, 9H), 3.02˜2.68 (m, 7H), 2.36˜1.70 (m, 8H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(3-methoxy-2-vinyloxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.23-7.39 (m, 5H), 6.97-7.07 (m, 4H), 6.61-6.88 (m, 7H), 6.00-6.09 (m, 1H), 5.55-5.60 (m, 1H), 5.48 (dd, J=4.2 Hz, 10.8 Hz, 1H), 4.92-5.33 (m, 7H), 4.29-4.59 (m, 6H), 3.85 (s, 3H), 3.23-3.47 (m, 10H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(3-phenoxy-benzyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.18-3.44 (m, 8H), 4.29 (dd, J=5.6 Hz, J=15.1 Hz, 1H), 4.38-4.45 (m, 2H), 4.72 (d, J=14.8 Hz, 1H), 4.98 (d, J=17 Hz, 1H), 5.03 (d, J=10.4 Hz, 1H), 5.26 (t, J=5.8 Hz, 1H), 5.41 (dd, J=3.9 Hz, J=10.7 Hz, 1H), 5.55-5.64 (m, 1H), 6.32 (s, OH), 6.57 (d, J=8.4 Hz, 2H), 6.60 (t, J=6 Hz, NH), 6.87-6.99 (m, 7H), 7.07 (t, J=7.4 Hz, 1H), 7.21 (s, 1H), 7.27-7.37 (m, 7H)

(6S,9aS) 2-allyl-8-[2-(benzyl-methyl-amino)-benzyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 7.35˜6.00 (m, 18H) δ 6.70˜6.63 (m, 3H) δ 5.59˜5.40 (m, 2H) δ 5.38 (t, J=5.7 Hz, 1H) δ 5.02 (d, J=10.3 Hz, 1H) δ 4.98˜4.81 (dd, J=5.7 Hz, J=5.5 Hz, 2H) δ 4.44˜4.28 (dd, J=4.9 Hz, J=4.9 Hz, 1H) δ 3.97 (s, 2H) δ 3.46˜3.25 (m, 7H) δ 3.19˜3.14 (dd, J=4.1 Hz, J=4.2 Hz, 1H) δ 2.54 (s, 3H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[3-(3-methyl-but-2-enoyl)-1-(toluene-4-sulfonyl)-1H-indol-7-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.41 (d, J=9.3 Hz, 2H), δ 7.53 (d, J=8.4 Hz, 2H), δ 7.35˜7.20 (m, 8H), δ 7.01 (d, J=8.4 Hz, 2H), δ 6.93 (d, J=7.8 Hz, 1H), δ 6.75 (t, J=6.0 Hz, 1H), δ 6.66 (d, J=8.4 Hz, 2H), δ 5.69˜5.56 (m, 2H), δ 5.40 (t, J=5.7 Hz, 1H), δ 5.21˜4.90 (m, 4H), δ 4.46˜4.16 (m, 2H), δ 3.51˜3.30 (m, 6H), δ 3.10 (dd, J=3.9 Hz, J=11.7 Hz, 1H), δ 2.35 (s, 3H), 2.27 (s, 3H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[3-(3-methyl-but-2-enoyl)-1H-indol-7-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.49 (d, J=7.8 Hz, 1H), δ 7.90 (d, J=3.0 Hz, 1H), δ 7.40˜7.17 (m, 6H), δ 7.06 (d, J=4.5 Hz, 1H), δ 6.90 (d, J=8.4 Hz, 2H), δ 6.81 (t, J=6.0 Hz, 1H), δ 6.63˜6.55 (m, 3H), δ 5.65˜5.54 (m, 1H), δ 5.30˜5.14 (m, 3H), δ 3.44˜3.20 (m, 8H), δ 2.24 (s, 3H), δ 1.90 (s, 3H)

(6S,9aS)-2-allyl-8-[3-(3-ethoxy-butyryl)-1,1-indol-7-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.40 (d, J=8.1 Hz, 1H), δ 7.85 (dd, J=3.0 Hz, J=21.9 Hz, 1H), δ 7.37˜7.15 (m, 5H), δ 7.04 (d, f=7.2 Hz, 1H), δ 6.82 (t, J=8.1 Hz, 2H), δ 6.71˜6.68 (m, 1H), δ 6.51˜6.47 (m, 2H), δ 5.66˜5.47 (m, 1H), δ 4.57˜4.30 (m, 3H), δ 3.61˜3.11 (m, 8H), δ 2.84˜2.71 (m, 1H), δ 1.57 (s, 3H), δ 1.14˜1.09 (m, 3H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[5-methoxy-1-(toluene-4-sulfonyl)-1H-indol-3-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 2.28 (s, 3H), 3.24-3.38 (m, 8H), 3.80 (s, 3H), 4.38-4.47 (m, 3H), 4.88 (d, J=17.2 Hz, 1H), 4.94 (d, J=14.9 Hz, 1H), 5.10 (d, J=11 Hz, 1H), 5.25-5.32 (m, 1H), 6.01 (s, OH), 6.59 (d, J=8.5 Hz, 2H), 6.66 (t, J=6.1 Hz, NH), 6.92-6.96 (m, 3H), 7.11 (d, J=2.4 Hz, 1H), 7.17 (d, J=8.2 Hz, 2H), 7.32-7.42 (m, 6H), 7.72 (d, J=8.4 Hz, 2H), 7.82 (d, J=9 Hz, 1H)

Dodecane-1-sulfonic acid 2-[(6S,9aS) 2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-phenyl ester

¹H-NMR (300 MHz, CDCl₃): δ 0.84 (t, J=6.9 Hz, 3H), 1.23 (brs, 15H), 1.39-1.46 (m, 2H), 1.93 (q, T=7.7 Hz, 2H), 3.12 (dd, J=4.1 Hz, J=11.8 Hz, 1H), 3.21 (d, J=17.1 Hz, 1H), 3.26-3.45 (m, 9H), 4.25-4.30 (m, 2H), 4.38 (dd, J=6 Hz, J=14.9 Hz, 1H), 4.77 (d, J=7.2 Hz, 1H), 5.01 (d, J=10.4 Hz, 1H), 5.22-5.27 (m, 2H), 6.58 (d, J=8.3 Hz, 2H), 6.66 (t, J=6 Hz, NH), 6.93 (d, J=8.3 Hz, 2H), 7.19-7.38 (m, 9H)

(6S,9aS) 2-allyl-5-(4-hydroxy-benzyl)-4,6-dioxo-7-(2-piperazin-1-yl-pyridin-3-ylmethyl)-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 9.11˜8.71 (brs, 1H), 7.29˜6.87 (m, 9H), 6.89 (d, J=7.6 Hz, 2H), 6.67˜6.61 (m, 3H), 5.54˜5.44 (brs, 2H), 5.23˜5.20 (m, 1H), 5.17˜5.13 (m, 1H), 5.03 (d, J=10.1 Hz, 1H), 4.86 (d, J=16.5 Hz, 1H), 4.71 (d, J=14.1 Hz, 1H), 4.55 (d, J=14.4 Hz, 1H), 4.32˜4.16 (m, 2H), 3.50˜2.98 (m, 16H)

(6S,9aS) 2-allyl-8-(3,5-di-tert-butyl-2-methoxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 7.38˜7.31 (q, J=6.1 Hz, 3H) δ 7.28˜7.22 (m, 4H) δ 7.04˜7.00 (m, 3H) δ 6.89 (s, 1H) δ 6.67 (t, J=6.2 Hz, 1H) δ 6.62 (d, J=9.2 Hz, 2H) δ 5.71˜5.66 (dd, J=4.2 Hz, J=4.1 Hz, 1H) δ 5.58˜5.47 (m, 1H) δ 5.29 (d, J=14.2 Hz, 1H) δ 5.05 (d, J=10.3 Hz, 1H) δ 4.83 (d, J=17.1 Hz, 1H) δ 3.73 (s, 3H) δ 3.39 (d, J=4.5 Hz, 2H) δ 3.33 (d, J=9.6 Hz, 2H) δ 3.25˜3.11 (m, 2H) δ 1.37 (s, 9H) δ 1.26 (s, 9H)

(6S,9aS) 2-allyl-8-[3-chloro-1-(toluene-4-sulfonyl)-1H-indol-7-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.65 (s, 1H), 7.47 (d, J=8.32 Hz, 2H), 7.43 (d, J=7.63 Hz, 1H), 7.35˜7.15 (m, 7H), 7.03 (d, J=8.3 Hz, 2H), 6.98 (d, J=7.52 Hz, 1H), 6.68 (m, 3H), 5.60 (m, 2H), 5.37 (m, 2H), 5.10 (m, 2H), 4.95 (d, J=16.3 Hz, 1H), 4.34 (ddd, J=32.9, 14.9, 6.0 Hz, 2H), 3.40 (m, 7H), 3.07 (dd, J=11.8, 3.97 Hz, 1H), 2.32 (s, 3H)

(6S,9aS) 2-allyl-8-(2-allyloxy-3-tert-butyl-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 7.38˜7.22 (m, 7H) δ 7.07˜6.94 (m, 4H) δ 6.75 (s, 1H) δ 6.69 (d, J=6.0 Hz, 1H) δ 6.64 (d, J=8.4 Hz, 2H) δ 6.08˜5.99 (m, 1H) δ 5.61˜5.48 (m, 1H) δ 5.42˜5.35 (m, 1H) δ 5.27 (d, J=9.4 Hz, 1H) δ 5.10˜4.90 (m, 2H) δ 4.53 (d, J=15.1 Hz, 1H) δ 4.46˜4.33 (m, 2H) 4.29˜4.23 (m, 2H) δ 3.43 (d, J=6.4 Hz, 2H) δ 3.38 (d, J=3.3 Hz, 2H) δ 3.33 (d, J=15.7 Hz, 2H) δ 1.37 (s, 9H)

(6S,9aS) 2-allyl-8-(3-chloro-1H-indol-7-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 9.99 (s, NH), 7.61 (d, J=7.96 Hz, 1H), 7.37˜7.2 (m, 6H), 7.05 (d, J=7.77 Hz, 1H), 6.97 (d, J=6.92 Hz, 1H), 6.89 (d, J=8.39 Hz, 2H), 6.65 (t, J=6.14 Hz, NH), 6.54 (d, J=8.4 Hz, 2H), 5.87 (s, 1H), 5.57 (m, 1H), 5.37 (t, J=7.5 Hz, 1H), 5.24 (m, 2H), 5.14 (d, J=10.2 Hz, 1H), 4.95 (d, J=17.0 Hz, 1H), 4.35 (m, 3H), 3.30 (m, 7H)

(6S,9aS) 2-allyl-8-(3,5-di-tert-butyl-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.40˜7.20 (m, 6H), 7.07 (d, J=1.70 Hz, 1H), 7.01 (d, J=8.4 Hz, 2H), 6.68 (t, J=6.0 Hz, NH), 6.62 (d, J=8.40 Hz, 2H), 6.20 (brs, OH), 5.64˜5.55 (m, 1H), 5.37 (t, J=6.2 Hz, 1H), 5.15˜5.02 (m, 2H), 4.85 (d, J=17.2 Hz, 1H), 4.40 (ddd, J=32.2, 14.8, 6.0 Hz, 2H), 4.15 (d, J=14.4 Hz, 1H), 3.50˜3.20 (m, 8H), 1.30 (s, 18H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[3-methoxy-2-(2-piperidin-1-yl-ethoxy)-benzyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.22-7.43 (m, 6H), 7.11 (t, J=3.3 Hz, 1H), 6.63-6.97 (m, 8H), 5.59-5.68 (m, 1H), 5.04-5.22 (m, 5H), 4.25-4.40 (m, 6H), 3.88 (s, 3H), 3.25-3.63 (m, 14H), 1.80-1.88 (m, 4H), 1.43-1.64 (m, 2H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(5-methoxy-1H-indol-3-ylmethyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.24 (d, J=17 Hz, 1H), 3.33-3.45 (m, 7H), 3.84 (s, 3H), 4.33 (dd, J=6 Hz, J=14.9 Hz, 1H), 4.87 (dd, J=6 Hz, J=14.9 Hz, 1H), 4.55 (d, J=14.6 Hz, 1H), 4.83 (d, J=17.1 Hz, 1H), 4.95 (d, J=14.6 Hz, 1H), 5.06 (d, J=10.4 Hz, 1H), 5.26-5.31 (m, 2H), 5.52-5.57 (m, 1H), 6.54 (d, J=8.4 Hz, 1H), 6.69 (t, J=5.4 Hz, NH), 6.84 (dd, J=2.4 Hz, J=8.4 Hz, 1H), 6.93 (d, J=8.4 Hz, 2H), 7.01 (d, J=2.3 Hz, 1H), 7.19-7.24 (m, 3H), 7.29-7.38 (m, 3H), 8.24 (s, 1H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[3-(morpholine-4-carbonyl)-benzyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.426˜7.226 (m, 9H), 7.135 (s, 1H), 6.946˜6.918 (d, J=8.4 Hz, 2H), 6.629˜6.601 (m, 3H), 5.707˜5.574 (dt, T=6.0 Hz, J=10.2 Hz, 1H), 5.287˜5.254 (t, J=5.1, 1H), 5.196˜5.082 (m, 2H), 4.919˜4.869 (d, J=15.0 Hz, 1H), 4.424˜4.255 (m, 3H), 3.522˜3.154 (m, 8H), 1.669 (s, 3H), 1.257 (s, 3H)

(6S,9aS) 2-allyl-8-(3-cyclopentylcarbamoyl-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.724˜7.700 (d, J=7.2 Hz, 1H), 7.409˜7.208 (m, 8H), 6.891˜6.863 (d, J=8.4 Hz, 2H), 6.367˜6.554 (m, 3H), 5.700˜5.566 (dt, J=6.6 Hz, J=10.5 Hz, 1H), 5.265˜4.964 (m, 4H), 3.568˜3.304 (m, 7H), 2.090˜1.257 (m, 9H)

Octane-1-sulfonic acid 2-[(6S,9aS) 2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-6-methoxy-phenyl ester

¹H NMR (CDCl₃, 300 MHz) δ 7.19-7.39 (m, 5H), 6.93-7.00 (m, 3H), 6.62-6.80 (m, 4H), 5.56-5.66 (m, 1H), 5.46 (dd, J=3.9 Hz, 11.1 Hz, 1H), 5.33 (t, J=5.4 Hz, 1H), 5.04-5.15 (m, 2H), 4.80 (q, J=15.0 Hz, 2H), 4.27-4.47 (m, 2H), 3.87 (s, 3H), 3.23-3.59 (m, 10H), 1.95-2.04 (m, 2H), 1.17-1.69 (m, 16H), 0.83-0.90 (m, 4H)

CWP232017 (6S,9aS) 2-allyl-8-(2-cyclopropylmethoxy-3-methoxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 0.21 (dd, J=4.8 Hz, J=10.1 Hz, 2H), 0.50 (dd, J=5.5 Hz, T=12.4 Hz, 2H), 1.14˜1.27 (m, 1H), 3.30-3.51 (m, 8H), 3.73-3.79 (m, 2H), 3.82 (s, 3H), 4.29 (dd, J=6 Hz, J=14 Hz, 1H), 4.37 (dd, J=6 Hz, J=14 Hz, 1H), 4.56 (d, J=14.6 Hz, 1H), 4.97-5.03 (m, 2H), 5.09 (d, J=10.3 Hz, 1H), 5.30 (t, J=5.4 Hz, 1H), 5.45 (dd, J=4 Hz, J=10.7 Hz, 1H), 5.56-5.63 (m, 1H), 6.61 (d, J=8.3 Hz, 2H), 6.68 (t, J=5.9 Hz, NH), 6.76 (d, J=7.6 Hz, 1H), 6.83 (d, T=7.3 Hz, 1H), 6.96-7.04 (m, 3H), 7.22-7.37 (m, 5H)

(6S,9aS) 2-allyl-8-(2-cyclopentyloxy-3-methoxy-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 1.65-1.75 (m, 8H), 3.12 (dd, J=4.1 Hz, J=12 Hz, 1H), 3.19 (d, J=17.1 Hz, 1H), 3.30-3.47 (m, 6H), 3.79 (s, 3H), 4.24 (dd, J=5.8 Hz, J=14.9 Hz, 1H), 4.31 (dd, J=5.8 Hz, J=14.9 Hz, 1H), 4.51 (d, J=14.7 Hz, 1H), 4.75-4.83 (m, 2H), 4.93 (d, J=17.4 Hz, 1H), 5.05 (d, J=10.3 Hz, 1H), 5.27 (t, J=5.8 Hz, 1H), 5.42 (dd, J=3.8 Hz, J=10.8 Hz, 1H), 5.51-5.59 (m, 1H), 6.57 (d, J=8.3 Hz, 2H), 6.68 (d, J=7.6 Hz, 1H), 6.78 (d, J=8.3 Hz, 1H), 6.93-7.00 (m, 3H), 7.27-7.34 (m, 5H)

(6S,9aS) 2-allyl-8-[2-(3-fluoro-phenoxy)-3-methoxy-benzyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.11 (dd, J=4 Hz, J=11.7 Hz, 1H), 3.19-3.25 (m, 3H), 3.27-3.38 (m, 4H), 3.69 (s, 3H), 4.25 (dd, J=5.9 Hz, J=14.9 Hz, 1H), 4.35-4.42 (m, 2H), 4.71 (d, J=14.7 Hz, 1H), 4.96-5.13 (m, 3H), 5.31 (dd, T=4 Hz, J=10.7 Hz, 1H), 5.51-5.60 (m, 1H), 6.38 (dt, J=2.4 Hz, 1H), 6.54-6.66 (m, 5H), 6.84-6.94 (m, 4H), 7.10-7.20 (m, 3H), 7.28-7.35 (m, 3H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[2-(indan-2-yloxy)-3-methoxy-benzyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.17˜7.35 (m, 7H), 7.15˜7.05 (m, 2H), 7.0 (t, J=7.9 Hz, 1H), 6.90˜6.80 (m, 3H), 6.75 (d, J=7.5 Hz, 1H), 6.65 (t, J=5.9 Hz, NH), 6.54 (d, J=8.3 Hz, 2H), 5.57 (m, 1H), 5.32˜3.25 (m, 2H), 5.16 (t, J=5.6 Hz, 1H), 5.12 (d, J=10.3 Hz, 1H), 5.03 (d, J=17.2 Hz, 1H), 4.49˜4.25 (m, 4H), 3.81 (s, 3H), 3.44 (s, 1H), 3.35 (d, J=6.0 Hz, 2H), 3.30˜3.15 (m, 4H), 3.05 (t, J=3.8 Hz, 4H), 2.94 (dd, J=12.0, 4.0 Hz, 1H).

(6S,9aS) 2-allyl-8-(3-cyclohexylcarbamoyl-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.741˜7.717 (d, J=7.2 Hz, 1H), 7.444˜7.222 (m, 15H), 6.871˜6.843 (d, J=8.4 Hz, 2H), 6.646˜6.572 (m, 3H), 5.692˜5.602 (m, 2H), 5.234˜4.895 (m, 4H), 3.406˜3.273 (m, 3H), 3.3.571˜3.305 (m, 7H), 2.047˜1.1.251 (m, 11H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-{3-[(tetrahydro-furan-2-ylmethyl)-carbamoyl]-benzyl}-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.966˜7.902 (m, 1H), 7.483˜7.200 (m, 8H), 6.824˜6.796 (d, J=8.4 Hz, 1H), 6.667˜6.611 (t, J=8.4 Hz, 2H), 6.534˜6.508 (d, J=7.8 Hz, 1H), 5.763˜5.681 (m, 1H), 5.503˜5.326 (m, 1H), 5.261˜5.167 (m, 3H), 4.963˜4.825 (m, 1H), 4.516˜4.203 (m, 2H), 3.942˜3.465 (m, 8H), 2.187˜1.406 (m, 7 H)

(6S,9aS) 2-allyl-8-(3-amino-benzo[d]isoxazol-7-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ 3.23-3.37 (m, 5H), 3.50-3.54 (m, 3H), 3.74 (t, J=11.2 Hz, 1H), 4.29 (s, NH), 4.77 (d, J=15.3 Hz, 2H), 4.93 (d, J=15.3 Hz, 1H), 5.02 (d, J=17.3 Hz, 1H), 5.05 (d, J=10.3 Hz, 1H), 5.21 (t, J=5.4 Hz, 1H), 5.41 (dd, J=3.9 Hz, J=10.7 Hz, 1H), 5.72-5.77 (m, 1H), 6.62 (d, J=8.3 Hz, 2H), 6.91 (d, J=8.3 Hz, 2H), 7.20-7.25 (m, 4H), 7.30-7.34 (m, 3H), 7.69 (d, J=7.7 Hz, 1H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(2-nitro-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.03 (d, J=8.1 Hz, 1H), δ 7.61 (t, J=7.5 Hz, 2H), δ 7.45 (t, J=7.8 Hz, 1H), 7.37˜7.21 (m, 5H), δ 7.01 (d, J=7.8 Hz, 1H), δ 6.99 (d, J=8.1 Hz, 2H), δ 6.78˜6.68 (m, 3H), δ 5.65˜5.50 (m, 2H), δ 5.37˜5.13 (m, 4H), δ 4.74 (d, J=17.1 Hz, 1H), δ 4.44˜4.29 (m, 2H), δ 3.65˜3.23 (m, 8H)

(6S,9aS) 2-allyl-8-(3-cyano-2-fluoro-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.59˜7.48 (m, 3H), δ 7.32 (m, 6H), δ 6.93 (d, J=8.4 Hz, 2H), δ 6.75 (t, J=6.0 Hz, 1H), δ 6.63 (d, J=8.4 Hz, 2H), δ 5.70˜5.61 (m, 1H), δ 5.44 (dd, J=3.9 Hz, J=10.8 Hz, 1H), δ 5.29˜5.11 (m, 3H), δ 4.73˜4.62 (m, 2H), δ 4.45˜4.36 (m, 2H), δ 3.69˜3.30 (m, 8H)

(6S,9aS) 2-allyl-8-(2-amino-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.85˜7.59 (m, 6H), δ 7.08 (t, J=5.8 Hz, 1H), δ 6.93˜6.82 (m, 4H), δ 6.67˜6.59 (m, 4H), δ 5.63˜5.50 (m, 1H), δ 5.36 (dd, J=4.3 Hz, J=10.5 Hz, 1H), δ 5.21 (t, J=5.7 Hz, 1H), δ 5.08 (d, J=10.3 Hz, 1H), δ 4.92˜4.86 (m, 2H), δ 4.39˜4.22 (m, 2H), δ 4.16˜4.04 (m, 1H), δ 3.41˜3.18 (m, 8H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(4-oxo-2-phenyl-4H-chromen-8-ylmethyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.14˜8.10 (m, 1H), δ 7.87 (d, J=6.2 Hz, 2H), δ 7.53˜7.47 (m, 3H), δ 7.40˜7.20 (m, 8H), δ 6.98 (d, J=8.3 Hz, 2H), δ 6.78 (s, 1H), δ 6.72˜6.68 (m, 3H), δ 5.59˜5.50 (m, 1H), δ 5.38 (dd, J=3.8 Hz, J=10.7 Hz, 2H), δ 5.13˜4.97 (m, 4H), δ 4.41˜4.29 (m, 2H), δ 3.60˜3.32 (m, 8H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(4-oxo-4H-chromen-8-ylmethyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.16 (d, J=7.3 Hz, 1H), δ 8.03 (d, J=6.0 Hz, 1H), δ 7.69 (d, J=7.4 Hz, 1H), δ 7.43˜7.22 (m, 8H), δ 5.70˜5.61 (m, 1H), δ 5.20˜5.10 (m, 3H), δ 5.03 (dd, J=4.3 Hz, J=10.1 Hz, 1H), δ 4.90 (d, J=14.6 Hz, 1H), δ 4.75˜4.68 (m, 4H), δ 4.37˜4.30 (m, 3H), δ 3.68˜3.16 (m, 8H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(2-phenyl-pyridin-3-ylmethyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.49 (d, J=3.4 Hz, 1H), δ 7.09˜7.35 (m, 12H), δ 6.83 (d, J=8.3 Hz, 1H), δ 6.54 (t, J=5.9 Hz, 1H), δ 6.49 (d, J=8.4 Hz, 2H), δ 6.05 (s, 1H) δ 5.36˜5.54 (m, 1H), δ 5.23 (dd, J=10.6 Hz, J=3.9 Hz, 2H), δ 5.08 (t, J=5.3 Hz, 1H), δ 5.01 (d, J=10.4 Hz, 1H), δ 4.89 (d, J=14.1 Hz, 1H), δ 4.70 (d, J=15.5 Hz, 1H), δ 4.55 (d, J=15.5 Hz, 1H), δ 4.28 (dd, J=14.8 Hz, J=6.4 Hz, 1H), δ 4.17 (dd, J=14.8 Hz, J=6.4 Hz, 1H), δ 3.05˜3.33 (m, 6H), δ 2.77 (dd, J=11.8 Hz, J=3.9 Hz, 1H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(1-pyridin-2-yl-1H-indol-7-ylmethyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.54 (m, 1H), 7.87 (td, J=1.8 Hz, 7.8 Hz, 1H), 7.64 (d, J=7.8 Hz, 1H), 7.14˜7.36 (m, 10H), 6.92-6.98 (m, 3H), 6.58-6.69 (m, 5H), 5.39-5.49 (m, 2H), 4.91-5.10 (m, 4H), 4.69 (d, J=16.8 Hz, 1H), 4.22-4.42 (m, 4H), 3.10-3.48 (m, 8H), 2.88 (dd, J=4.2 Hz, 12.0 Hz, 1H)

(6S,9aS) 2-allyl-8-(1,1-dioxo-1H-16-benzo[b]thiophen-3-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.74 (d, J=9.0 Hz, 1H), δ 7.65˜7.52 (m, 3H), δ 7.41˜7.26 (m, 4H), δ 6.98 (d, J=9.0 Hz, 2H), δ 6.78˜6.68 (m, 3H), δ 6.41 (s, 1H), δ 5.66˜5.60 (m, 1H), δ 5.32˜5.11 (m, 4H), δ 4.68 (d, J=6.0 Hz, 2H), δ 4.48˜4.37 (m, 2H), δ 3.59˜3.30 (m, 8H)

(6S,9aS) 2-allyl-8-(6-bromo-pyridin-2-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.52 (t, J=9.0 Hz, 1H), δ 7.40˜7.34 (m, 4H), δ 7.25 (d, J=6.0 Hz, 1H), δ 7.15 (d, J=6.0 Hz, 1H), δ 6.99 (d, J=6.0 Hz, 2H), δ 6.74 (t, J=6.0 Hz, 1H), δ 6.63 (d, J=9.0 Hz, 2H), δ 5.71˜5.55 (m, 2H), δ 5.32 (t, J=6.0 Hz, 1H), δ 4.58 (d, J=15.0 Hz, 1H), δ 4.45˜4.33 (m, 2H), δ 3.88 (t, J=9.0 Hz, 1H), δ 3.63˜3.31 (m, 7H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(6-phenyl-pyridin-2-ylmethyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.98 (d, J=6.0 Hz, 1H), δ 7.78˜7.65 (m, 2H), δ 7.47˜7.38 (m, 5H), δ 7.33˜7.16 (m, 2H), δ 7.17 (d, J=6.0 Hz, 1H), δ 7.00 (d, J=9.0 Hz, 2H), δ 6.72 (t, J=6.0 Hz, 1H), δ 6.62 (d, J=6.0 Hz, 2H), δ 5.64˜5.58 (m, 2H), δ 5.39 (t, J=6.0 Hz, 1H), δ 4.45˜4.37 (m, 2H), δ 3.91 (t, J=12.0 Hz, 1H), 3.57˜3.28 (m, 7H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[6-(2-methoxy-phenyl)-pyridin-2-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.80˜7.66 (m, 3H), δ 7.39˜7.32 (m, 3H), δ 7.30˜7.24 (m, 2H), δ 7.13 (t, J=6.0 Hz, 1H), δ 7.06˜6.97 (m, 4H), δ 6.72 (t, J=6.0 Hz, 1H), δ 6.62 (d, J=6.0 Hz, 2H), δ 5.66˜5.57 (m, 21˜1), δ 5.38 (t, J=6.0 Hz, 1H), δ 5.09˜4.91 (m, 3H), δ 4.60 (d, J=15.0 Hz, 1H), δ 4.42˜4.38 (m, 2H), δ 3.91 (t, J=12.0 Hz, 1H), δ 3.85 (s, 3H), δ 3.50˜3.26 (m, 7H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[6-(4-methanesulfonyl-phenyl)-pyridin-2-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.18 (d, J=8.4 Hz, 2H), 8.01 (d, J=9.3 Hz, 2H), 7.71-7.83 (m, 2H), 7.24-7.40 (m, 5H), 6.89 (d, J=8.4 Hz, 2H), 6.74 (t, J=6.0 Hz, 1H), 6.49 (d, J=8.4 Hz, 2H), 5.59-5.68 (m, 1H), 5.51 (dd, J=4.2 Hz, 10.8 Hz, 1H), 5.29-5.36 (m, 1H), 5.13 (d, J=10.2 Hz, 1H), 5.02 (d, J=17.1 Hz, 1H), 4.85 (d, J=15.3 Hz, 1H), 4.66 (d, J=13.5 Hz, 1H), 4.30-4.49 (m, 2H), 3.84 (t, J=11.2 Hz, 1H), 3.31-3.68 (m, 7H), 3.07 (s, 3H)

(6S,9aS) 2-allyl-8-[6-(4-fluoro-phenyl)-pyridin-2-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz)), δ 7.98˜7.94 (m, 2H), δ 7.73 (t, J=6.0 Hz, 1H), δ 7.61 (d, J=9.0 Hz, 1H), δ 7.24 (m, 4H), δ 7.16˜7.09 (m, 3H), δ 6.98 (d, J=9.0 Hz, 2H), δ 6.72 (t, J=6.0 Hz, 1H), δ 6.60 (d, J=9.0 Hz, 2H), δ 6.62 (s, 13H), δ 5.65˜5.56 (m, 2H), δ 5.37 (t, J=6.0 Hz, 1H), δ 5.09 (d, J=12.0 Hz, 1H), δ 4.92 (t, J=15.0 Hz, 2H), δ 4.63 (d, J=15.0 Hz, 1H), δ 4.49˜4.31 (m, 2H), δ 3.86 (t, J=9.0 Hz, 1H), δ 3.59˜3.27 (m, 7H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[6-(4-methoxy-phenyl)-pyridin-2-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.93 (d, J=9.0 Hz, 2H), δ 7.71 (t, J=6.0 Hz, 1H), δ 7.60 (d, J=9.0 Hz, 1H), δ 7.40˜7.25 (m, 4H), δ 7.10 (d, J=6.0 Hz, 1H), δ 6.99 (t, J=9.0 Hz, 4H), δ 6.72 (t, J=6.0 Hz, 1H), δ 6.62 (d, J=9.0 Hz, 2H), δ 5.64˜5.59 (m, 2H), δ 5.40 (t, J=6.0 Hz, 1H), δ 5.10˜4.90 (m, 3H), δ 4.57 (d, J=15.0 Hz, 1H), δ 4.45˜4.37 (m, 2H), δ 3.90 (t, J=9.0 Hz, 1H), δ 3.84 (s, 3H), δ 3.57˜3.27 (m, 7H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[6-(4-methylsulfanyl-phenyl)-pyridin-2-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.92 (d, J=9.0 Hz, 2H), δ 7.75˜7.61 (m, 2H), δ 7.40˜7.25 (m, 5H), δ 7.13 (d, J=9.0 Hz, 1H), δ 7.00 (d, J=9.0 Hz, 2H), δ 6.73 (t, J=6.0 Hz, 1H), δ 6.60 (t, J=9.0 Hz, 2H), δ 6.44 (s, 1H), δ 5.64˜5.59 (m, 2H), δ 5.40 (t, J=6.0 Hz, 1H), δ 5.09 (d, J=12.0 Hz, 1H), δ 4.99˜4.90 (m, 2H), δ 4.59 (d, J=15.0 Hz, 1H), δ 4.45˜4.39 (m, 2H), δ 3.90 (t, J=9.0 Hz, 1H), δ 3.58˜3.28 (m, 7H), δ 2.52 (s, 3H)

(6S,9aS) 2-allyl-8-(1-benzenesulfonyl-3-phenyl-1,1-indol-7-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.67 (s, 1H), 7.54 (m, 3H), 7.45˜7.35 (m, 5H), 7.35˜7.20 (m, 7H), 7.13 (d, J=6.8 Hz, 3H), 6.96 (d, J=8.3 Hz, 2H), 6.63 (d, J=8.4 Hz, 2H), 5.57 (m, 1H), 5.32˜3.25 (m, dd, J=10.5, 5.7 Hz, 1H), 5.50 (m, 1H), 5.36 (d, J=5.7 Hz, 1H), 5.31 (d, J=16.2 Hz, 1H), 5.05 (d, J=10.3 Hz, 1H), 4.99 (d, J=4.5 Hz, 1H), 4.94 (d, J=3.1 Hz, 1H), 4.26 (ddd, J=26.5, 15.0, 5.9 Hz, 2H), 3.50˜3.20 (m, 6H), 3.05 (dd, J=11.7, 4.0 Hz, 1H).

(6S,9aS) 2-allyl-8-[6-(3-cyano-phenyl)-pyridin-2-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.28˜8.22 (m, 1H), δ 7.81 (t, J=9.0 Hz, 1H), δ 7.69˜7.66 (m, 2H), δ 7.57 (t, J=9.0 Hz, 1H), δ 7.40˜7.31 (m, 3H), δ 7.27˜7.25 (m, 2H), δ 6.97 (d, J=9.0 Hz, 2H), δ 6.73 (t, J=6.0 Hz, 1H), δ 6.59 (t, J=9.0 Hz, 2H), δ 5.70˜5.53 (m, 2H), δ 5.36 (t, J=6.0 Hz, 1H), δ 5.16˜4.99 (m, 2H), δ 4.77 (d, J=6.0 Hz, 2H), δ 4.51˜4.32 (m, 2H), δ 3.85 (t, J=9.0 Hz, 1H), δ 3.64˜3.31 (m, 7H)

(6S,9aS) 2-allyl-8-(3-bromo-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 7.42˜7.32 (m, 4H) δ 7.30˜7.14 (m, 5H) δ 6.99˜6.63 (m, 4H) δ 6.34 (s, 1H) δ 5.63˜5.57 (m, 1H) δ 5.39˜5.32 (m, 2H) δ 5.16 (d, J=10.2 Hz, 1H) δ 4.91 (dd, J=18.3 Hz, J=15.4 Hz, 2H) δ 4.41˜4.36 (m, 4H) δ 3.46 (d, J=6.1 Hz, 2H) δ 3.41 (d, J=4.5 Hz, 2H) δ 3.35 (d, J=9.2 Hz, 2H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(3-phenyl-1H-indol-7-ylmethyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 10.09 (s, 1H), 7.87 (d, J=8.0 Hz, 1H), 7.60 (d, J=7.3 Hz, 2H), 7.40˜7.20 (m, 8H), 7.03 (t, J=7.5 Hz, 1H), 6.94 (d, J=6.9 Hz, 1H), 6.89 (d, J=8.3 Hz, 1H), 6.53 (d, J=8.3 Hz, 2H), 6.43 (brs, OH), 5.51 (m, 1H), 5.42˜5.27 (m, 2H), 5.21 (m, 1H), 5.09 (d, J=10.2 Hz, 1H), 4.90 (d, J=17.0 Hz, 1H), 4.42˜4.20 (m, 3H), 3.40˜3.30 (m, 5H), 3.16 (d, J=17.0 Hz, 1H).

(6S,9aS) 2-allyl-8-(6-cyclopropyl-pyridin-2-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.49 (t, J=9.0 Hz, 1H), δ 7.39˜7.24 (m, 3H), δ 7.03˜6.92 (m, 4H), δ 6.85 (s, 1H), δ 6.73 (t, J=6.0 Hz, 1H), δ 6.63 (t, J=9.0 Hz, 2H), δ 5.70˜5.53 (m, 2H), δ 5.32 (t, J=6.0 Hz, 1H), δ 5.20˜5.10 (m, 2H), δ 4.83 (d, J=15.0 Hz, 1H), δ 4.48˜4.32 (m, 3H), δ 3.77 (t, J=12.0 Hz, 1H), δ 3.55˜3.29 (m, 1H), δ 2.01˜1.19 (m, 1H), δ 0.95˜0.93 (m, 4H)

(6S,9aS) 2-allyl-8-[2,3]bipyridinyl-6-ylmethyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 9.13 (s, 1H), δ 8.56 (d, J=3.0 Hz, 1H), δ 8.27 (d, J=6.0 Hz, 1H), δ 7.76 (t, J=6.0 Hz, 1H), δ 7.64 (d, J=9.0 Hz, 1H), δ 7.39˜7.19 (m, 6H), δ 6.92 (d, J=9.0 Hz, 2H), δ 6.66 (t, J=6.0 Hz, 1H), δ 6.58 (d, J=9.0 Hz, 2H), δ 5.60˜5.55 (m, 2H), δ 5.44 (dd, J=3.0 Hz, J=12.0 Hz, 1H), δ 5.31 (t, J=6.0 Hz, 1H), δ 5.19 (d, J=9.0 Hz, 1H), δ 5.09 (d, J=15.0 Hz, 1H), δ 4.99 (dd, J=15.0 Hz, J=27.0 Hz, 2H), δ 4.45˜4.25 (m, 2H), δ 3.76 (t, J=12.0 Hz, 1H), δ 3.58˜3.26 (m, 7H)

CWP232066 (6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[2-(2-methoxy-phenyl)-pyridin-3-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.61 (d, J=4.7 Hz, 1H), δ 7.22˜7.58 (m, 9H), δ 6.92˜7.07 (m, 4H), δ 6.92˜6.95 (m, 3H), δ 5.05˜5.65 (m, 1H), δ 5.41 (d, J=8.0 Hz, 1H), δ 5.19˜5.29 (m, 1H), δ 5.12 (t, J=11.0 Hz, 1H), δ 4.81˜5.07 (m, 2H), δ 4.62 (q, J=15.2 Hz, 1H), δ 4.27˜4.45 (m, 2H), δ 3.73 (d, J=13.7 Hz, 3H), δ 3.03˜3.48 (m, 7H), δ 2.89˜2.93 (m, 1H)

(6S,9aS) 2-allyl-8-(2-cyclopropyl-pyridin-3-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.41 (d, J=3.6 Hz, 1H), δ 7.25˜7.41 (m, 7H), δ 7.00˜7.06 (m, 3H), δ 6.65˜6.71 (m, 3H), δ 6.29 (s, 1H), δ 5.49˜5.64 (m, 1H) δ 5.48 (dd, J=10.5 Hz, J=3.9 Hz 1H), δ 5.35 (t, J=5.5 Hz, 1H), δ 5.06˜5.20 (m, 2H), δ 4.92 (d, J=17.2 Hz, 1H), δ 4.45 (d, J=15.0 Hz, J=5.9 Hz, 1H), δ 4.35 (dd, J=15.0 Hz, J=5.9 Hz, 1H), δ 3.30˜3.51 (m, 7H), δ 3.18 (dd, J=11.7 Hz, J=3.2 Hz, 1H), δ 2.02˜2.18 (m, 1H), δ 1.14˜1.23 (m, 1H), δ 0.93˜1.02 (m, 3H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[6-(4-hydroxy-phenyl)-pyridin-2-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.82 (d, J=9.0 Hz, 2H), δ 7.66 (t, J=9.0 Hz, 1H), δ 7.51 (d, J=9.0 Hz, 1H), δ 7.38˜7.22 (m, 4H), δ 7.05 (d, J=6.0 Hz, 1H), δ 6.99 (d, J=9.0 Hz, 4H), δ 6.84 (d, J=9.0 Hz, 2H), δ 6.73 (t, J=6.0 Hz, 1H), δ 6.63 (d, J=9.0 Hz, 2H), δ 5.67˜5.51 (m, 2H), δ 5.44 (t, J=6.0 Hz, 1H), δ 5.06 (d, J=9.0 Hz, 1H), δ 4.41˜4.36 (m, 2H), δ 3.85 (t, J=12.0 Hz, 1H), δ 3.53˜3.25 (m, 7H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[6-(3-methoxy-phenyl)-pyridin-2-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.75˜7.53 (m, 5H), δ 7.37˜7.22 (m, 6H), δ 7.15 (d, J=9.0 Hz, 1H), δ 7.01 (d, J=6.0 Hz, 2H), δ 6.93 (d, J=9.0 Hz, 1H), δ 6.73 (t, J=6.0 Hz, 1H), δ 6.64 (d, J=9.0 Hz, 2H), δ 5.70˜5.56 (m, 2H), δ 5.39 (t, J=6.0 Hz, 1H), δ 5.07˜4.89 (m, 3H), δ 4.57 (d, J=15.0 Hz, 1H), δ 4.41˜4.37 (m, 2H), 3.93˜3.84 (m, 4H), δ 3.53˜3.26 (m, 7H)

(6S,9aS) 2-allyl-8-(3-cyano-1H-indol-7-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 10.75 (s, 1H), 7.72 (m, 2H), 7.36˜7.04 (m, 6H), 6.83 (d, J=8.4 Hz, 2H), 6.73 (t, J=6.0 Hz, 1H), 6.50 (d, J=8.4 Hz, 2H), 5.59 (m, 1H), 5.42 (t, J=6.5 Hz, 1H), 5.24 (t, J=5.7 Hz, 1H), 5.14 (m, 1H), 5.10 (d, J=17.1 Hz, 1H), 4.50˜4.27 (m, 3H), 3.42˜3.20 (m, 8H)

(6S,9aS) 2-allyl-8-(1-benzenesulfonyl-3-cyano-1H-indol-7-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.25 (s, 1H), 7.61 (d, J=7.6 Hz, 2H), 7.58 (d, J=7.5 Hz, 2H), 7.50 (d, J=7.9 Hz, 2H), 7.35˜7.15 (m, 7H), 6.96 (d, J=8.3 Hz, 2H), 6.92 (d, J=7.8 Hz, 1H), 5.73 (s, 1H), 5.57 (m, 1H), 5.45 (dd, J=1039, 3.5 Hz, 1H), 5.32 (t, J=5.4 Hz, 1H), 5.21˜5.00 (m, 3H), 4.75 (d, J=16.2 Hz, 1H), 4.30 (ddd, J=36.6, 15.2, 6.4 Hz, 2H), 3.50˜3.25 (m, 7H), 3.0 (dd, J=12.2, 3.6 Hz, 1H).

(6S,9aS) 2-allyl-8-[2,3′]bipyridinyl-3-ylmethyl-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.65 (d, J=2.0 Hz, 1H), δ 8.54˜8.59 (m, 2H), δ 7.75 (d, J=7.9 Hz, 1H), 7.12˜7.39 (m, 8H), δ 6.88 (d, J=8.4 Hz, 2H), δ 6.55˜6.60 (m, 3H), δ 5.46˜5.56 (m, 1H), δ 5.31 (dd, J=10.7 Hz, J=3.9 Hz, 1H), δ 5.17 (t, J=5.2 Hz, 1H), δ 5.07 (d, J=10.3 Hz, 1H), δ 4.96 (d, J=17.2 Hz, 1H), δ 4.83 (d, J=15.8 Hz, 1H), δ 4.45 (d, J=15.7 Hz, 1H), δ 4.31 (dd, J=14.9 Hz, J=6.0 Hz, 1H), δ 4.21 (dd, J=14.9 Hz, J=6.0 Hz, 1H), δ 3.17˜3.41 (m, 7H), δ 2.88 (dd, J=11.5 Hz, J=3.9 Hz, 1H). MS ESI 618.2 (M+H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(3-pyridin-3-yl-benzyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 8.88 (s, 1H) δ 8.63 (d, J=5.3 Hz, 1H) δ 7.93 (d, J=6.3 Hz, 1H) δ 7.48 (d, J=5.7 Hz, 1H) δ 7.46˜7.39 (m, 4H) δ 7.36˜7.26 (m, 5H) δ 7.22˜6.94 (m, 4H) δ 6.65 (s, 1H) δ 6.55 (d, J=11.2 Hz, 1H) δ 5.65˜5.55 (m, 2H) δ 5.26 (s, 1H) δ 4.50˜4.14 (dd, J=7.1 Hz, J=5.9 Hz, 2H) δ 4.82 (d, J=10.6 Hz, 1H) δ 4.01 (d, J=15.2 Hz, 1H) δ 3.58˜3.47 (m, 2H) δ 3.42˜3.35 (m, 2H) δ 3.31˜3.17 (m, 2H)

(6S,9aS) 2-allyl-8-[2-(3-cyano-phenyl)-pyridin-3-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.62 (d, J=4.2 Hz, 1H), δ 7.79 s, 1H), δ 7.70 (d, J=8.0 Hz, 3H), δ 7.55 (t, J=7.7 Hz, 1H), δ 7.45 (d, J=7.8 Hz, 1H), δ 7.21˜7.38 (m, 5H), δ 6.95 (d, J=8.3 Hz, 1H), δ 6.60˜6.69 (m, 3H), δ 6.09 (s, 1H), δ 5.56˜5.66 (m, 1H), δ 5.33 (dd, J=10.5 Hz, J=3.6 Hz, 1H), δ 5.24 (t, J=5.2 Hz, 1H), δ 5.16 (d, J=10.3 Hz, 1H), δ 5.05 (d, J=17.1 Hz, 1H), δ 4.85 (d, J=15.7 Hz, 1H), δ 4.50 (d, J=15.7 Hz, 1H), δ 4.40 (dd, J=14.9 Hz, J=5.9 Hz, 1H), δ 4.29 (dd, J=14.9 Hz, J=5.9 Hz, 1H), δ 3.25˜3.49 (m, 6H), δ 2.94 (dd, J=11.6 Hz, J=3.9 Hz, 1H). MS ESI 642.2 (M+H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-[2-(3-methoxy-phenyl)-pyridin-3-ylmethyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 8.60 (d, J=2.7 Hz, 1H), δ 7.46 (d, J=18.9 Hz, 1H), δ 7.20˜7.37 (m, 7H), δ 6.94˜7.03 (m, 5H), δ 6.59˜6.63 (m, 2H), δ 6.55˜6.60 (m, 3H), δ 6.24 (t, J=6.5 Hz, 1H), δ 5.63˜5.77 (m, 3H), 5.15˜5.23 (m, 2H), δ 4.80 (dd, J=15.5 Hz, J=5.5 Hz, 1H), δ 4.29˜4.67 (m, 4H), δ 3.83 (d, J=4.3 Hz, 3H), δ 3.16˜3.42 (m, 6H), δ 2.79 (dd, J=11.5 Hz, J=3.9 Hz, 1H).

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(3-pyridin-4-yl-benzyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 8.69 (d, J=6 Hz, 2H) δ 7.57 (d, J=6 Hz, 2H) δ 7.52˜7.33 (m, 4H) δ 7.31˜7.29 (m, 5H) δ 7.26˜6.96 (m, 4H) δ 6.72 (s, 1H) δ 6.57 (d, J=8.2 Hz, 1H) δ 5.58˜5.56 (m, 2H) δ 5.38 (d, J=7.1 Hz, 1H) δ 5.17˜5.01 (dd, J=11.8 Hz, J=17.1 Hz, 2H) δ 4.75˜4.31 (m, 4H) δ 3.50 (d, J=5.3 Hz, 2H) δ 3.46˜3.41 (m, 2H) δ 3.35 (d, J=9.2 Hz, 2H)

(6S,9aS) 2-allyl-8-[6-(3,3-dimethyl-but-1-ynyl)-pyridin-2-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.60 (t, J=9.0 Hz, 1H), δ 7.41˜7.25 (m, 5H), δ 7.08 (d, J=9.0 Hz, 1H), δ 7.02 (d, J=9.0 Hz, 2H), δ 6.73 (t, J=6.0 Hz, 1H), δ 6.66 (d, J=9.0 Hz, 2H), δ 5.65˜5.53 (m, 2H), δ 5.32 (t, J=6.0 Hz, 1H), δ 5.25˜5.20 (m, 2H), δ 4.42˜4.37 (m, 2H), δ 3.80 (t, J=12.0 Hz, 1H), δδ 3.60˜3.29 (m, 7H), δ 1.33 (s, 9H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(1-propyl-1H-indol-3-ylmethyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.66 (d, J=7.5 Hz, 1H), 6.97-7.39 (m, 9H), 6.59-6.69 (m, 3H), 5.79 (s, 1H), 5.52 (m, 1H), 5.18-5.30 (m, 3H), 5.01 (d, J=10.8 Hz, 1H), 4.75 (d, J=17.4 Hz, 1H), 4.31-4.43 (m, 3H), 4.04 (t, J=6.3 Hz, 2H), 3.20-3.41 (m, 8H), 1.85 (q, J=7.5 Hz, 2H), 0.93 (t, J=7.2 Hz, 3H)

Acetic acid 2-{3-[(6S,9aS) 2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-indol-1-yl}-ethyl ester

¹H NMR (CDCl₃, 300 MHz) δ 7.66 (d, J=7.8 Hz, 1H) 6.96-7.36 (m, 9H), 6.58-6.68 (m, 3H), 6.73 (s, 1H), 5.50-5.56 (m, 1H), 5.24-5.34 (m, 2H), 5.06 (m, 2H), 4.81 (d, J=17.1 Hz, 1H), 4.56 (d, J=14.7 Hz, 1H), 4.28-4.45 (m, 6H), 3.22-3.44 (m, 8H), 2.00 (s, 3H)

(6S,9aS) 2-allyl-5-(4-hydroxy-benzyl)-4,6-dioxo-7-(2-phenyl-pyrimidin-4-ylmethyl)-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 8.75 (d, J=5.0 Hz, 1H), 8.42˜8.39 (m, 2H), 7.47˜7.45 (m, 3H), 7.39˜7.25 (m, 5H), 7.04 (d, J=5.0 Hz, 1H), 6.98 (d, J=8.4 Hz, 2H), 6.73 (t, J=4.0 Hz, NH), 6.62 (d, J=8.4 Hz, 2H), 6.52˜6.46 (brs, OH), 5.69˜5.56 (m, 2H), 5.40 (t, J=5.6 Hz, 1H), 5.12 (d, J=10.1 Hz, 1H), 5.00 (d, J=17.2 Hz, 1H), 4.88 (d, J=16.1 Hz, 1H), 4.58 (d, J=16.1 Hz, 1H), 4.60˜4.33 (m, 2H), 3.92 (t, J=11.3 Hz, 1H), 3.60˜3.33 (m, 7H)

(6S,9aS) 2-allyl-7-(2-amino-pyrimidin-4-ylmethyl)-5-(4-hydroxy-benzyl)-4,6-dioxo-octahydro-pyrido[3,4-c]pyridazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃): δ 8.18 (d, J=5.1 Hz, 1H), 7.40˜7.23 (m, 5H), 6.83 (d, J=8.3 Hz, 2H), 6.73 (t, J=6.0 Hz, NH), 6.59 (d, J=8.4 Hz, 2H), 6.46 (d, J=5.1 Hz, 1H), 5.75˜5.62 (m, 1H), 5.56=5.46 (brs, NH2), 5.36 (dd, J=8.1 Hz 5.5 Hz, 1H), 5.23˜5.17 (m, 3H), 5.01 (d, J=16.3 Hz, 1H), 4.49˜4.25 (m, 2H), 3.91 (d, J=16.2 Hz, 1H), 3.70˜3.37 (m, 7H), 3.29 (dd, J=13.8 Hz 5.6 Hz, 1H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(3-thiophen-3-yl-benzyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, TFA-d) δ 7.53˜7.47 (m, 3H) δ 7.32˜7.27 (m, 4H) δ 7.10˜7.02 (m, 5H) δ 6.97˜6.94 (m, 4H) δ 6.65˜6.62 (m, 3H) δ 5.52˜5.51 (m, 2H) δ 5.24˜5.21 (m, 1H) δ 5.07 (d, J=10.3 Hz, 2H) δ 4.60 (d, J=15.1 Hz, 2H) δ 3.72 (d, J=18.2 Hz, 2H) δ 3.58˜3.54 (m, 2H) δ 3.49 (s, 2H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxo-8-(3-pyridin-2-yl-benzyl)-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 8.68 (d, J=5.1 Hz, 1H) δ 7.91 (d, J=11.2 Hz, 2H) δ 7.75 (d, J=11.2 Hz, 2H) δ 7.46 (t, J=8.5 Hz, 1H) δ 7.29˜7.22 (m, 5H) δ 7.38˜7.33 (m, 2H) δ 7.00˜6.97 (m, 2H) δ 6.68 (t, J=6.3 Hz, 1H) δ 6.62˜6.59 (m, 3H) δ 5.57˜5.53 (m, 1H) δ 5.00˜4.96 (dd, J=4.3 Hz, J=7.2 Hz, 2H) δ 4.41˜4.33 (dd, J=6.2 Hz, J=6.3 Hz, 2H) δ 3.45˜3.37 (m, 6H)

(6S,9aS) 2-allyl-8-(3′-cyano-biphenyl-3-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃): δ3.23-3.29 (m, 4H), 3.31˜3.44 (m, 4H), 4.24 (dd, J=5.9 Hz, J=14.9 Hz, 1H), 4.35 (dd, J=5.9 Hz, J=14.9 Hz, 1H), 4.49 (d, J=14.8 Hz, 1H), 4.77 (d, J=14.8 Hz, 1H), 4.91 (d, J=17 Hz, 1H), 5.05 (d, J=10.3 Hz, 1H), 5.28 (t, J=5.5 Hz, 1H), 5.38-5.41 (m, 1H), 5.52-5.58 (m, 1H), 6.53 (d, J=8.3 Hz, 2H), 6.66 (t, J=6 Hz, NH), 6.90 (d, J=8.3 Hz, 2H), 7.18-7.24 (m, 4H), 7.29 (dd, J=7.9 Hz, J=15.4 Hz, 1H), 7.38-7.43 (m, 3H), 7.47-7.52 (m, 1H), 7.57 (d, J=7.7 Hz, 1H), 7.74 (d, J=7.8 Hz, 1H), 7.80 (s, 1H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(3′-methoxy-biphenyl-3-ylmethyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 7.51˜7.40 (m, 4H) δ 7.37˜7.30 (m, 5H) δ 7.24˜7.22 (m, 4H) δ 7.19˜6.88 (m, 4H) 6.65 (s, 1H) δ 6.56 (d, J=9.0 Hz, 1H) δ 5.658˜5.556 (m, 2H) δ 5.63˜5.54 (m, 1H) δ 5.323˜5.306 (m, 2H) δ 4.97˜4.81 (dd, J=17.1 Hz, J=15.7 Hz, 2H) δ 4.40˜4.30 (m, 2H) δ 3.85 (s, 3H) δ 3.43 (d, J=10.3 Hz, 2H) δ 3.39˜3.35 (m, 2H) δ 3.31˜3.25 (m, 2H)

(6S,9aS) 2-allyl-6-(4-hydroxy-benzyl)-8-(2′-methoxy-biphenyl-3-ylmethyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 7.47˜7.37 (m, 4H) δ 7.35˜7.29 (m, 5H) δ 7.28˜7.15 (m, 4H) δ 7.05˜6.96 (m, 4H) δ 6.69 (t, J=6.3 Hz, 1H) δ 6.59 (d, J=9.2 Hz, 2H) δ 5.55˜5.46 (m, 2H) δ 5.10˜5.04 (m, 2H) δ 4.40˜4.34 (m, 2H) δ 4.31˜4.27 (m, 2H) δ 3.77 (s, 3H) δ 3.41 (d, J=7.1 Hz, 2H) δ 3.35 (d, J=6.6 Hz, 2H) δ 3.30˜3.24 (dd, J=5.4 Hz, J=4.7 Hz, 2H)

(6S,9aS) 8-(3-Acetylbenzyl)-2-allyl-6-(4-hydroxy-benzyl)-4,7-dioxohexahydropyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (300 MHz, CDCl₃) δ 2.60 (s, 3H), 3.24-3.52 (m, 9H), 4.31 (dd, J=6.0, 14.7 Hz, 1H), 4.42 (dd, J=6.0, 14.7 Hz, 1H), 4.57 (d, J=14.7 Hz, 1H), 4.80 (d, J=14.7 Hz, 1H), 5.03 (d, J=17.4 Hz, 1H), 5.14 (d, J=10.8 Hz, 1H), 5.33 (t, J=6.0 Hz, 1H), 5.43 (dd, J=4.2, 10.8 Hz, 1H), 5.55-5.66 (m, 1H), 6.62 (d, J=8.4 Hz, 2H), 6.70 (t, J=6.0 Hz, 1H), 6.97 (d, J=8.4 Hz, 2H), 7.22-7.32 (m, 5H), 7.34-7.39 (m, 2H), 7.44-7.49 (m, 2H), 7.83 (s, 1H), 7.88 (ddd, J=1.5, 11.5 Hz, 1H)

(6S,9aS) 2-allyl-8-[3-(6-fluoro-pyridin-3-yl)-benzyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H-NMR (300 MHz, CDCl₃) δ 8.44 (d, J=4.0 Hz, 1H) δ 8.02˜7.96 (m, 1H) δ 7.44˜7.35 (m, 4H) δ 7.31˜7.16 (m, 9H) δ 7.04˜7.01 (m, 1H) δ 6.60 (s, 1H) δ 6.55 (d, J=8.2 Hz, 1H) δ 5.29˜5.25 (m, 2H) δ 5.67˜5.58 (m, 1H) δ 5.15˜5.03 (m, 4H) δ 4.42˜4.25 (m, 2H) δ 3.45 (s, 2H) δ 3.37˜3.31 (dd, J=6.1 Hz, J=5.6 Hz, 2H) δ 3.26˜3.21 (dd, J=4.2 Hz, J=3.8 Hz, 2H)

(6S,9aS) 2-allyl-8-[1-benzenesulfonyl-2-(2-fluoro-phenyl)-3-methyl-1H-indol-7-ylmethyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃, 300 MHz) δ 7.42-7.47 (m, 1H), 6.97-7.36 (m, 17H), 6.66-6.71 (m, 4H), 4.94-5.63 (m, 7H), 4.25-4.43 (m, 2H), 3.28-3.48 (m, 7H), 2.38 (s, 1H)

2-allyl-6-(4-hydroxy-benzyl)-8-(2′-hydroxy-biphenyl-3-ylmethyl)-4,7-dioxo hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.806˜7.765 (t, J=6.2 Hz, 1H), δ 7.462˜7.433 (d, J=8.5 Hz, 2H), δ 7.351˜7.289 (m, 3 H), δ 7.234˜7.165 (t, J=6.4 Hz, 3H), δ 7.144˜7.119 (d, J=7.5 Hz, 1H), δ 7.045˜7.020 (d, J=7.6 Hz, 1H), δ 6.941˜6.915 (d, J=7.9 Hz, 1H), δ 6.873˜6.830 (t, J=6.6 Hz, 2H), δ 6.558˜6.531 (d, J=8.3 Hz, 2H), δ 5.848˜5.747 (m, 1H), δ 5.419˜5.271 (dd, J=3.9 Hz, J=3.8 Hz, 1H), δ 5.064˜5.014 (d, J=9.2 Hz, 2H), δ 4.795˜4.746 (d, J=14.8 Hz, 1H), δ 4.381˜4.331 (d, J=14.9 Hz, 1H), δ 4.290˜4.127 (dd, J=6.6 Hz, J=6.6 Hz, 2H), δ 3.651˜3.438 (m, 4H), δ 3.292 (s, 8H), δ 3.126˜3.108 (d, J=5.4 Hz, 2H)

3′-[2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-biphenyl-3-carboxylic acid

¹H NMR (CDCl₃): δ 8.237 (s, 1H), δ 8.076δ8.055 (d, J=3.6 Hz, 1H), δ 7.788δ7.644 (d, J=7.2 Hz, 1H), δ 7.750 (s, 2H), δ 7.431˜7.383 (t, J=7.2 Hz, 2H), 7.311˜7.232 (m, 6H), δ 7.201˜6.161 (t, J=6.1 Hz, 3H), δ 6.946˜6.919 (d, J=8.0 Hz, 2H), δ 6.690˜6.656 (t, J=5.1 Hz, 1H), δ 5.594˜5.569 (d, J=7.8 Hz, 2H), 5.564 (m, 1H), δ 5.325˜5.232 (m, 2H), δ 5.118˜5.083 (d, J=10.4 Hz, 1H), δ 5.021˜4.964 (d, J=17.1 Hz, 1H), δ 4.815˜4.520 (dd, J=15.5 Hz, J=15.5 Hz, 2H), δ 4.356˜4.341 (d, J=4.7 Hz, 2H), δ 3.500˜3.243 (m, 8H)

2-allyl-8-(3-carbamoyl-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.506 (s, 1H), δ 7.821˜7.796 (d, J=7.6 Hz, 1H), δ 7.604 (s, 1H), δ 7.469˜7.379 (m, 3H), δ 7.346˜7.320 (m, 2H), δ 7.234˜7.210 (d, J=6.9 Hz, 2H), δ 7.010 (s, 1H), δ 6.9166.888 (d, J=8.5 Hz, 3H), δ 6.766˜6.737 (d, J=8.5 Hz, 2H), δ 6.570˜6.530 (t, J=6.0 Hz, 1H), 5.810˜5.755 (d, J=16.6 Hz, 1H), δ 5.715˜5.581 (m, 1H), δ 5.213˜5.163 (m, 3H), δ 4.873˜4.832 (dd, J=6.5 Hz, J=6.5 Hz, 1H), δ 3.892˜3.837 (d, J=16.6 Hz, 1H), δ 3.633˜3.576 (d, J=17.2 Hz, 2H), δ 3.504˜3.283 (m, 6H)

2-allyl-6-(4-hydroxy-benzyl)-8-[3-(6-methoxy-pyridin-3-yl)-benzyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.427˜8.419 (d, J=2.2 Hz, 1H), δ 8.846˜8.809 (dd, J=2.5 Hz, J=2.5 Hz, 2H), 7.438˜7.368 (m, 4H), δ 7.321˜7.218 (m, 7H), δ 7.166˜7.145 (d, J=6.4 Hz, 1H), δ 6.989˜6.961 (d, J=8.4 Hz, 2H), δ 6.891˜6.862 (d, J=8.6 Hz, 1H), δ 6.682˜6.654 (d, J=8.4 Hz, 2H), δ 6.585˜6.546 (t, J=5.7 Hz, 1H), δ 5.682˜5.591 (dd, J=10.3 Hz, J=10.3 Hz, 1H), 5.423˜5.371 (d, J=15.4 Hz, 1H), δ 5.277˜5.247 (t, J=3.6 Hz, 1H), 5.171˜5.133 (d, J=11.4 Hz, 2H), δ 4.883˜4.835 (dd, J=3.9 Hz, J=3.9 Hz, 1H), δ 4.504˜4.432 (dd, J=6.8 Hz, J=6.8 Hz, 1H), δ 4.218˜4.105 (m, 2H), δ 4.045 (s, 3H) δ 3.573˜3.516 (dd, J=3.1 Hz, J=3.1 Hz, 1H), δ 3.492˜3.464 (d, J=8.5 Hz, 2H) δ 3.420˜3.309 (m, 3H) δ 3.223˜3.172 (dd, J=3.8 Hz, J=3.8 Hz, 1H)

2-allyl-6-(4-hydroxy-benzyl)-8-[3-(6-morpholin-4-yl-pyridin-3-yl)-benzyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1.2.4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.30 (s, 1H), δ 7.390˜7.314 (m, 3H), δ 7.250˜7.213 (m, 11H), δ 7.129 (s, 2H), δ 7.078˜7.059 (d, J=5.6 Hz, 3H), δ 6.933˜6.905 (d, J=8.5 Hz, 3H), δ 6.741˜6.711 (d, J=8.9 Hz, 2H), δ 6.620˜6.592 (d, J=8.4 Hz, 3H), δ 6.516˜6.476 (t, J=6.0 Hz, 1H), δ 5.581 (m, 1H), δ 5.492˜5.442 (d, J=15.5 Hz, 2H), δ 5.520˜5.186 (m, 1H), δ 5.126˜5.039 (t, J=16.9 Hz, 3H), δ 4.745˜4.698 (dd, J=3.5 Hz, J=3.5 Hz, 1H), δ 4.461˜4.390 (dd, J=6.6 Hz, J=6.6 Hz, 1H), δ 4.159˜4.092 (dd, J=5.4 Hz, J=5.4 Hz, 1H), δ 4.002˜3.950 (d, J=15.5 Hz, 1H) δ 3.840˜3.808 (m, 3H), δ 3.546˜3.489 (m, 7H) δ 3.460˜3.418 (t, J=6.2 Hz, 6H) δ 3.365˜3.134 (m, 10H)

2-allyl-8-(3′-carbamoyl-biphenyl-3-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.043˜8.018 (d, J=7.6 Hz, 1H), δ 7.802 (s, 1H), δ 7.737˜7.711 (d, J=7.8 Hz, 1H), δ 7.621˜7.536 (m, 2H), δ 7.492˜7.345 (m, 4H), δ 7.260 (s, 7H), δ 7.142˜7.118 (d, J=7.1 Hz, 2H), δ 7.075 (s, 1H), δ 6.921˜6.893 (d, J=8.4 Hz, 2H), δ 6.651˜6.611 (t, J=6.0 Hz, 1H), δ 6.450˜6.422 (d, J=8.4 Hz, 2H), δ 6.257 (s, 1H), δ 5.819˜5.765 (d, J=16.1 Hz, 2H), δ 5.697˜5.638 (m, 1H), δ 5.251˜5.201 (m, 3H), δ 5.050 (s, 1H), δ 4.398˜4.170 (dd′dd, J=6.6 Hz, J=6.6 Hz, J=5.9 Hz, J=5.9 Hz, 2H), δ 3.929˜3.875 (d, J=16.1 Hz, 1H), δ 3.647˜3.381 (m, 8H)

6-[2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-pyridine-2-carboxylic acid ethyl ester

¹H NMR (CDCl₃): δ 8.030˜8.005 (d, J=7.1 Hz, 1H), δ 7.842˜7.791 (t, J=7.7 Hz, 1H), δ 7.393˜7.237 (m, 8H), δ 7.013˜6.986 (d, J=8.4 Hz, 2H), δ 6.744˜6.705 (t, J=5.9 Hz, 1H), δ 6.652˜6.624 (d, J=8.4 Hz, 2H), δ 6.096 (s, 1H), δ 5.705˜5.539 (m, 2H), δ 5.350˜5.312 (t, J=5.6 Hz, 1H), δ 5.209˜5.152 (m, 2H), δ 4.890˜4.720 (dd, J=15.4 Hz, J=15.4 Hz, 2H), δ 4.472˜4.307 (m, 4H), δ 3.900˜3.825 (t, J=11.4 Hz, 1H), δ 3.617˜3.300 (m, 7H), δ 2.171 (s, 2H), δ 1.424˜1.377 (t, J=3.3 Hz, 3H)

2-allyl-8-(5-carbamoyl-pyridin-3-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.977 (s, 1H), δ 8.634 (s, 1H), δ 7.623 (s, 1H), δ 7.419˜7.304 (m, 4H), δ 7.262 (s, 2H), δ 7.216˜7.193 (d, J=7.0 Hz, 2H), δ 6.884˜6.856 (d, J=8.4 Hz, 2H), δ 6.695˜6.667 (d, J=8.4 Hz, 2H), δ 6.619˜6.578 (t, J=6.0 Hz, 1H), 6.406 (s, 1H), δ 5.775˜5.720 (d, J=16.4 Hz, 1H), δ 5.709˜5.596 (m, 1H), 5.240˜5.185 (m, 3H), 4.808˜4.764 (dd, J=6.8 Hz, J=6.8 Hz, 1H), δ 4.421˜4.155 (dd'dd, J=5.8 Hz, J=5.8 Hz, J=5.8 Hz, J=5.8 Hz, 2H), δ 3.899˜3.845 (d, J=16.3 Hz, 1H), δ 3.504˜3.283 (m, 7 II) δ 3.232˜3.183 (dd, J=3.0 Hz, J=3.0 Hz, 1H),

2-allyl-6-(4-hydroxy-benzyl)-8-(3-methoxycarbamoyl-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.845˜8.819 (d, J=7.6 Hz, 1H), δ 7.504˜7.208 (m, 5H), δ 7.261˜7.233 (m, 4H), δ 6.925˜6.897 (d, J=8.4 Hz, 3H), δ 6.777˜6.749 (d, J=8.4 Hz, 2H), δ 6.636˜6.595 (t, J=6.1 Hz, 1H), δ 5.849˜5.794 (d, J=16.6 Hz, 1H), δ 5.697˜5.584 (m, 1H), δ 5.226 (s, 1H), δ 5.190˜5.172 (d, J=5.6 Hz, 2H), δ 4.647˜4.603 (dd, J=2.7 Hz, J=2.7 Hz, 1H), δ 4.507˜4.124 (dd′dd, J=6.9 Hz, T=6.9 Hz, J=6.9 Hz, J=6.9 Hz, 2H), 3.789 (s, 3H), δ 3.680˜3.243 (dd'dd, J=2.9 Hz, J=2.9 Hz, J=2.9 Hz, J=2.9 Hz, 2H), δ 3.547 (s, 1H), δ 3.503˜3.404 (m, 5H)

2-allyl-6-(4-hydroxy-benzyl)-8-(3-hydroxycarbamoyl-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.714 (s, 1H), δ 7.365˜7.318 (t, J=6.7 Hz, 3H), δ 7.260 (m, 10H), δ 6.910˜6.778 (m, 4H), δ 6.708 (s, 1H), δ 6.543 (s, 1H), δ 5.847˜5.792 (d, J=16.6 Hz, 1H), δ 5.701˜5.579 (m, 1H), 5.213˜5.174 (d, J=11.7 Hz, 4H), δ 4.846˜4.814 (d, J=8.2 Hz, 1H), δ 4.436˜4.147 (dd, J=12.5 Hz, J=12.5 Hz, 2H), δ 3.771˜3.713 (d, J=17.5 Hz, 2H), δ 3.645˜3.210 (dd, J=16.5 Hz, J=16.5 Hz, 4H), δ 3.484˜3.216 (m, 7H)

2-allyl-6-(4-hydroxy-benzyl)-8-[3-(2-hydroxy-ethylcarbamoyl)-benzyl]-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.883˜7.868 (d, J=8.5 Hz, 1H), δ 7.465˜7.269 (m, 6H), δ 7.225 (s, 4H), δ 7.176˜7.152 (d, J=8.5 Hz, 2H), δ 7.049 (s, 1H), δ 6.660˜6.502 (dd, J=2.7 Hz, J=2.7 Hz, 4H), δ 5.704˜5.570 (m, 1H), δ 5.503˜5.451 (d, J=6.1 Hz, 1H), δ 5.262 (s, 1H), δ 5.221˜5.089 (dd, J=2.7 Hz, J=2.7 Hz, 2H), δ 4.817˜4.772 (dd, J=2.7 Hz, J=2.7 Hz, 1H), δ 4.376˜4.199 (dd′dd, J=6.9 Hz, J=6.9 Hz, J=6.9 Hz, J=6.9 Hz, 2H), δ 4.159 (s, 1H), δ 3.816˜3.178 (m, 13H)

2-allyl-8-(3-cyano-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.603˜7.568 (m, 1H), δ 7.436 (s, 1H), δ 7.376˜7.352 (d, J=8.4 Hz, 2H), δ 7.326˜7.303 (d, J=6.8 Hz, 1H), δ 7.260 (s, 3H), δ 7.237 (s, 1H), δ 6.991˜6.963 (d, J=10.3 Hz, 2H), δ 6.712˜6.684 (d, J=17.1 Hz, 2H), δ 5.659˜5.637 (m, 1H), δ 5.332˜5.280 (m, 2H), 5.211˜5.177 (d, J=15.1 Hz, 1H), δ 5.116˜5.059 (d, J=5.4 Hz, 1H), δ 4.784˜4.734 (d, J=5.9 Hz, 1H), δ 4.486˜4.382 (dd, J=7.1 Hz, J=7.1 Hz, 2H), δ 4.158˜4.086 (dd, J=6.6 Hz, J=6.6 Hz, 1H), δ 3.534˜3.334 (m, 7H), δ 3.226˜3.174 (dd, J=3.9 Hz, J=3.9 Hz, 1H)

6-[2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-pyridine-2-carboxylic acid

¹H NMR (CDCl₃): δ 8.065˜8.041 (d, J=7.4 Hz, 1H), δ 7.973˜7.922 (t, J=7.8 Hz, 1H), δ 7.415˜7.389 (d, J=7.6 Hz, 1H), δ 7.344˜7.201 (m, 5H), δ 6.940˜6.912 (d, J=8.4 Hz, 2H), δ 6.657˜6.629 (d, J=8.4 Hz, 2H), δ 5.853˜5.762 (m, 1H), δ 5.466˜5.418 (dd, J=3.8 Hz, J=3.8 Hz, 1H), δ 5.253˜5.102 (m, 3H), δ 4.921˜4.619 (dd, J=15.8 Hz, J=15.8 Hz, 2H), 4.317 (s, 2H), δ 4.129˜4.057 (dd, J=7.2 Hz, J=7.2 Hz, 1H), δ 3.995˜3.919 (t, J=11.5 Hz, 1H), δ 3.679˜3.552 (m, 3H), δ 3.391˜3.223 (m, 7H)

(6S,9aS)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-8-((6-carbamoylpyridin-2-yl)methyl)-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 8.190˜8.165 (d, J=7.5 Hz, 1H), 8.055 (m, 1H), 7.900˜7.849 (t, J=7.5 Hz, 1H), 7.472˜7.447 (d, J=7.5 Hz, 1H), 7.397˜7.372 (d, J=7.5 Hz, 1H), 7.335˜7.311 (d, 7.5 Hz, 1H), 7.271˜7.247 (m, 4H), 6.636˜6.596 (t, J=6.0 Hz, 1H), 6.575˜6.547 (d, J=8.4 Hz, 2H), 6.477˜6.449 (d, J=8.4 Hz, 2H), 5.897 (m, 1H), 5.724˜5.666 (m, 1H), 5.264˜5.145 (m, 4H), 4.973˜4.926 (dd, J=3.6, 10.5 Hz, 1H), 4.46˜4.39 (dd, J=6.0 Hz, 1H), 4.34˜4.27 (dd, J=6.0 Hz, 1H), 4.030˜4.021 (d, J=3.6 Hz, 1H), 3.996˜3.928 (m, 1H), 3.778˜3.705 (t, J=11.1 Hz, 1H), 3.705˜3.383 (m, 5H), 3.302˜3.238 (dd, J=5.4, 13.5 Hz, 1H)

(6S,9aS)-8-(3-(6-chloropyridin-3-yl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 8.632˜8.624 (d, J=2.4 Hz, 1H), 7.888˜7.852 (dd, J=2.4, 8.1 Hz, 1H), 7.461˜7.252 (m, 12H), 7.10 (s, 1H), 6.956˜6.928 (d, J=8.4 Hz, 2H), 6.607˜6.579 (m, 3H), 5.671˜5.580 (m, 1H), 5.288˜5.256 (t, J=5.4 Hz, 1H), 5.188˜5.024 (m, 4H), 4.474˜4.403 (dd, J=6.3, 14.7 Hz, 1H), 4.353˜4.302 (d, J=15.3 Hz, 1H), 4.251˜4.202 (dd, J=6.3, 14.7 Hz, 1H), 3.530˜3.217 (m, 8H)

(6S,9aS)-8-(3˜cyano-4-fluorobenzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.465˜7.146 (m, 13H), 6.960˜6.938 (d, J=6.6 Hz, 2H), 6.725˜6.668 (m, 4H), 6.371˜6.338 (m, 1H), 4.786˜4.736 (d, J=1.5 Hz, 1H), 4.437˜4.341 (m, 3H), 3.554˜3.299 (m, 8H), 3.232˜3.167 (tt, J=3.9, 8.1 Hz, 1H)

(6S,9aS)-8-(3-(1H-tetrazol-5-yl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.953˜7.927 (d, J=7.8 Hz, 1H), 7.890 (m, 1H), 7.502˜7.451 (t, J=7.8 Hz, 1H), 7.321˜7.183 (m, 6H), 6.890˜6.862 (d, J=7.8 Hz, 2H), 6.569˜6.541 (d, J=7.8 Hz, 2H), 5.797˜5.663 (m, 1H), 5.315˜5.266 (dd, J=3.9, 10.8 Hz, 1H), 5.228˜5.194 (t, J=4.8 Hz, 1H), 5.035˜4.964 (m, 2H), 4.808˜4.759 (d, J=14.7 Hz, 1H), 4.604˜4.554 (d, J=14.7 Hz, 1H), 4.270 (m, 2H), 3.720˜3.644 (t, J=11.4 Hz, 1H), 3.560˜3.504 (m, 3H), 3.344˜3.209 (m, 4H)

(6S,9aS)-8-(3-(2-methoxypyridin-3-yl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 8.180˜8.157 (dd, J=1.8, 5.1 Hz, 2H), 7.626˜7.595 (dd, J=1.8, 5.1 Hz, 2H), 7.514˜7.141 (m, 13H), 7.001˜7.960 (m, 3H) m, 6.711˜6.671 (t, J=6.0 Hz, 1H), 6.598˜6.570 (m, 2H), 6.481 (m, 1H), 5.676˜5.519 (m, 1H), 5.424˜5.375 (dd, J=4.2, 10.5 Hz, 1H), 5.336˜5.299 (t, J=5.7 Hz, 1H), 5.110˜5.074 (d, J=10.5 Hz, 1H), 4.980˜4.915 (m, 2H), 4.469=4.286 (m, 4H), 3.947 (s, 3H), 3.470˜3.246 (m, 9H)

(6S,9aS)-6-(4-hydroxy-benzyl)-2-allyl-8-((3-aminobenzo[d]isoxazol-5-yl)methyl)-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.442˜7.225 (m, 9H), 6.827˜6.800 (d, J=8.1 Hz, 2H), 6.777˜6.739 (t, J=8.1 Hz, 1H), 6.608˜6.580 (d, J=8.1 Hz, 2H), 5.733˜5.568 (m, 1H), 5.228˜5.019 (m, 5H), 4.432˜4.251 (m, 3H), 4.159˜4.088 (dd, J=7.2, 14.4 Hz, 1H), 3.582˜3.272 (m, 9H)

(6S,9aS)-8-(3-(N-Boc hyhdrazinic carbonyl))benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 9.446 (s, 1H), 7.910 (m, 1H), 7.492˜7.245 (m, 5H), 7.010 (s, 1H), 6.708˜6.624 (m, 3H), 6.589˜6.528 (t, J=6.3 Hz, 1H), 5.734˜5.578 (m, 2H), 5.236˜5.127 (m, 3H), 4.830˜4.799 (d, J=6.3 Hz, 1H), 4.531˜4.457 (q, J=7.2 Hz, 1H), 4.143˜4.081 (dd, J=3.9, 14.4 Hz, 1H), 3.820˜3.767 (d, J=15.9 Hz, 1H), 3.585˜3.299 (m, 7H), 1.384 (s, 9H)

(6S,9aS)-8-(3-(piperidine-1-carbonyl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.407˜7.178 (m, 10H), 6.949˜6.921 (d, J=8.4 Hz, 2H), 6.854 (m, 1H), 6.680˜6.633 (m, 3H), 5.669˜5.578 (m, 1H), 5.298˜5.050 (m, 4H), 4.705˜4.580 (m, 2H), 4.440˜4.369 (dd, J=6.3, 15.3 Hz, 1H), 4.350˜4.280 (dd, J=6.3, 15.3 Hz, 1H), 3.749˜3.360 (m, 2H), 3.500˜3.169 (m, 10H), 1.778 (m, 3H), 1.669 (m, 4H), 1.492 (m, 2H)

(6S,9aS)-8-(3-(pyrrolidine-1-carbonyl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.389˜7.195 (m, 12H), 6.920˜6.892 (d, J=8.4 Hz, 2H), 6.663˜6.635 (d, J=8.4 Hz, 2H), 5.635˜5.579 (m, 1H), 5.271˜5.240 (t, J=4.8 Hz, 1H), 5.175˜5.058 (m, 3H), 4.842˜4.792 (d, J=1.5 Hz, 1H), 4.466˜4.272 (m, 3H), 3.675˜3.632 (t, J=6.3 Hz, 2H), 3.506˜3.168 (m, 11H), 1.928 (m, 2H), 1.846 (m, 2H), 1.669 (m, 4H)

(6S,9aS)-8-(3-(2-fluoropyridin-3-yl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 8.201˜8.185 (d, J=4.8 Hz, 1H), 7.909=7.845 (m, 1H), 7.512=7.223 (m, 10H), 6.983˜6.955 (d, J=8.4 Hz, 2H), 6.742˜6.702 (t, J=6.0 Hz, 1H), 6.634˜6.606 (d, J=8.4 Hz, 2H), 5.666˜5.419 (m, 2H), 5.351˜5.315 (t, J=4.8 Hz, 1H), 5.127˜5.092 (d, J=10.5 Hz, 1H), 4.999˜4.946 (d, J=10.5 Hz, 1H), 4.463˜4.291 (m, 3H), 3.490˜3.278 (m, 7H)

(9aS)-8-(2-(1H-tetrazol-1-yl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.623˜7.573 (t, J=7.5 Hz, 1H), 7.518˜7.470 (t, J=7.5 Hz, 1H), 7.392˜7.230 (m, 7H), 6.930˜6.902 (d, J=8.4 Hz, 2H), 6.779˜6.739 (t, J=6.0 Hz, 1H), 6.676˜6.658 (d, J=8.4 Hz, 2H), 5.659˜5.602 (m, 1H), 5.407˜5.359 (dd, J=6.3, 10.5 Hz, 1H), 5.237˜5.113 (m, 3H), 4.694˜4.641 (d, J=15.9 Hz, 1H), 4.397˜4.293 (m, 3H), 3.552˜3.155 (m, 7H)

(6S,9aS)-8-(3-(benzylcarbamoyl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.830˜7.805 (d, J=7.5 Hz, 1H), 7.760˜7.714 (m, 1H), 7.447˜7.014 (m, 12H), 6.847˜6.817 (dd, J=2.7, 6.3 Hz, 2H), 6.629˜6.601 (m, 2H), 6.553˜6.512 (t, J=6.0 Hz, 1H), 5.700˜5.582 (m, 1H), 5.534˜5.480 (d, J=16.2 Hz, 1H), 5.205˜5.024 (m, 4H), 4.279˜4.212 (dd, J=4.5, 16.3 Hz, 1H), 4.070˜3.879 (m, 3H), 3.636˜3.311 (m, 7H)

(6S,9aS)-8-(3-(2-oxo-1,2-dihydropyridin-3-yl)benzyl)-6-(4-hydroxy-benzyl)-2-allyl-N-benzyl-4,7-dioxo-hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide

¹H NMR (CDCl₃): δ 7.620˜7.555 (m, 2H), 7.504 (m, 1H), 7.390˜7.166 (m, 6H), 6.905˜6.878 (d, J=8.1 Hz, 2H), 6.698˜6.659 (t, J=6.0 Hz, 1H), 6.599˜6.571 (d, J=8.1 Hz, 2H), 6.334˜6.289 (t, J=6.0 Hz, 1H), 5.667˜5.533 (m, 1H), 5.295˜5.024 (m, 4H), 4.828˜4.779 (d, J=14.7 Hz, 1H), 4.486˜4.437 (d, J=14.7 Hz, 1H), 4.332˜4.290 (t, J=6.3 Hz, 2H)

2-allyl-6-(4-hydroxy-benzyl)-8-(6-methylcarbamoyl-pyridin-2-ylmethyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 8.205˜8.180 (d, J=7.7 Hz, 1H), 7.892˜7.840 (t, J=7.8 Hz, 1H), 7.469˜7.271 (m, 7H), 6.646˜6.604 (t, J=6.1 Hz, 1H), 6.481˜6.453 (d, J=8.5 Hz, 2H), 6.381˜6.352 (d, J=8.5 Hz, 2H), 5.813˜5.701 (td, J=10.2 Hz, J=6.5 Hz, 1H), 5.679˜5.119 (m, 4H), 4.961˜4.914 (dd, J=3.7 Hz, J=10.6 Hz, 1H), 4.498˜4.317 (qd, J=15.0 Hz, J=6.2 Hz, 2H), 4.167˜4.117 (dd, J=3.7 Hz, J=11.1 Hz, 1H), 3.927˜3.222 (m, 9H), 2.983˜2.966 (d, J=4.3 Hz, 3H)

2-allyl-6-(4-hydroxy-benzyl)-8-(3-methylcarbamoyl-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.796˜7.770 (d, J=7.6 Hz, 1H), 7.444˜7.221 (m, 9H), 6.911 (s, 1H), 6.827˜6.799 (d, J=8.5 Hz, 2H), 6.648˜6.620 (d, J=8.5 Hz, 2H), 5.813˜5.701 (td, J=11.0 Hz, J=6.3 Hz, 1H), 5.623˜5.569 (d, J=16.1 Hz, 1H), 5.246˜5.191 (m, 4H), 5.050˜5.006 (dd, J=3.0 Hz, J=10.3 Hz, 1H), 4.461˜4.236 (qd, J=15.1 Hz, J=6.5 Hz, 2H), 3.938˜3.884 (d, J=16.1 Hz, 1H), 3.686˜3.314 (m, 8H), 2.949˜2.934 (d, J=4.7 Hz, 3H)

2-allyl-8-[3-(2,5-dihydro-pyrrole-1-carbonyl)-benzyl]-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.421˜7.193 (m, 11H), 6.909˜6.881 (d, J=8.4 Hz, 2H), 6.652˜6.624 (d, J=8.5 Hz, 2H), 6.624˜6.582 (t, J=6.1 Hz, 1H), 5.623˜5.836 (dd, J=2.0 Hz, J=4.4 Hz, 1H), 5.673˜5.645 (m, 2H), 5.254˜5.222 (t, J=4.8 Hz, 1H), 5.168˜5.035 (m, 3H), 4.898˜4.848 (d, J=15.1 Hz, 1H), 4.455˜4.053 (m, 7H), 3.492˜3.150 (m, 8H)

2-allyl-8-(3-dimethylcarbamoyl-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.4027.235 (m, 9H), 7.168 (s, 1H), 6.931˜6.914 (d, J=8.4 Hz, 2H), 6.658˜6.642 (d, J=8.4 Hz, 2H), 5.698˜5.589 (td, J=16.6 Hz, J=6.2 Hz, 1H), 5.278˜5.259 (t, J=4.8 Hz, 1H), 5.180˜5.078 (m, 3H), 4.806˜4.777 (d, J=15.0 Hz, 1H), 4.510˜4.480 (d, J=15.0 Hz, 1H), 4.418˜4.282 (qd, J=15.0 Hz, J=2.7 Hz, 2H), 3.530˜3.300 (m, 7H), 3.204˜3.173 (dd, J=3.8 Hz, J=11.7 Hz, 1H), 3.123 (s, 3H), 2.923 (s, 3H),

3-[2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-2-nitro-benzoic acid methyl ester

¹H NMR (CDCl₃): δ 7.961˜7.945 (d, J=7.6 Hz, 1H), 7.584˜7.552 (t, J=7.8 Hz, 1H), 7.480˜7.465 (d, J=7.6 Hz, 1H), 7.386˜7.238 (m, 6H), 6.986˜6.969 (d, J=8.3 Hz, 2H), 6.738˜6.714 (t, J=5.9 Hz, 1H), 6.665˜6.648 (d, J=8.3 Hz, 2H), 5.673˜5.618 (td, J=10.2 Hz, J=4.0 Hz, 1H), 5.430˜5.401 (dd, J=3.8 Hz, J=10.8 Hz, 1H), 5.332˜5.312 (t, J=5.2 Hz, 1H), 5.223˜5.149 (d, J=10.3 Hz, 1H), 5.183˜5.149 (d, J=17.1 Hz, 1H), 4.826˜4.795 (d, J=15.7 Hz, 1H), 4.442˜4.306 (m, 3H), 3.900 (s, 3H), 3.583˜3.474 (m, 4H), 3.403˜3.314 (m, 3H), 3.191˜3.159 (dd, J=3.9 Hz, J=11.7 Hz, 1H),

2-allyl-8-(1-carbamoylmethyl-1H-benzoimidazol-4-ylmethyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.610 (s, 1H), 7.321˜7.220 (m, 5H), 7.132˜7.117 (d, J=7.4 Hz, 2H), 6.878 (s, 1H), 6.685˜6.662 (t, J=5.6 Hz, 1H), 6.635˜6.619 (d, J=7.9 Hz, 2H), 6.328˜6.313 (d, J=7.9 Hz, 2H), 6.223 (s, 1 H), 5.698˜5.619 (td, J=16.7 Hz, J=6.3 Hz, 1H), 5.391˜5.363 (d, J=14.2 Hz, 1H), 5.211˜5.154 (m, 3H), 4.543 (s, 2H), 4.455˜4.427 (d, J=14.3 Hz, 1H), 4.262˜4.153 (qd, J=15.3 Hz, J=6.1 Hz, 2H), 3.912˜3.894 (d, J=9.0 Hz, 1H), 6.635˜6.619 (t, J=11.0 Hz, 1H), 3.486˜3.345 (m, 4H), 3.201˜3.345 (dd, J=5.3 Hz, J=13.3 Hz, 1H),

2-allyl-8-(3-carbamoyl-2-nitro-benzyl)-6-(4-hydroxy-benzyl)-4,7-dioxo-hexahydro-pyrazino[2,1-c][1,2,4]triazine-1-carboxylic acid benzylamide

¹H NMR (CDCl₃): δ 7.655˜7.565 (m, 2H), 7.348˜7.565 (m, 6H), 6.939˜6.911 (d, J=8.5 Hz, 2H), 6.691˜6.663 (d, J=8.5 Hz, 2H), 5.861˜5.726 (td, J=16.8 Hz, J=6.4 Hz, 1H), 5.436˜5.388 (dd, J=3.7 Hz, J=10.7 Hz, 1H), 5.225˜4.976 (m, 4H), 4.342˜4.289 (m, 3H), 3.767˜3.692 (t, J=11.5 Hz, 1H)

{4-[2-allyl-1-benzylcarbamoyl-6-(4-hydroxy-benzyl)-4,7-dioxo-octahydro-pyrazino[2,1-c][1,2,4]triazin-8-ylmethyl]-benzyl}-phosphonic acid

¹H NMR (DMSO-D6): δ 8.176 (s, 3H), 7.805˜7.769 (t, J=5.6 Hz, 1H), 7.362˜7.189 (m, 7H), 7.031˜7.005 (d, J=7.5 Hz, 2H), 6.829˜6.801 (d, J=8.2 Hz, 2H), 6.551˜6.525 (d, J=8.2 Hz, 2H), 5.887˜5.751 (m, 1H), 5.267˜5.092 (m, 3H), 5.024˜4.992 (t, J=4.8 Hz, 2H), 4.910˜4.859 (d, J=15.4 Hz, 1H), 4.282˜4.152 (m, 2H), 4.038˜3.975 (m, 1H), 3.691˜3.487 (m, 4H), 3.286˜2.814 (m, 6H).

The libraries of the present invention were screened for bioactivity by various techniques and methods. In general, the screening assay may be performed by (1) contacting the mimetics of a library with a biological target of interest, such as a receptor, to allow binding between the mimetics of the library and the target to occur, and (2) detecting the binding event by an appropriate assay, such as the calorimetric assay disclosed by Lam et al. (Nature 354:82-84, 1991) or Griminski et al. (Biotechnology 12:1008-1011, 1994) (both of which are incorporated herein by reference). In a preferred embodiment, the library members are in solution and the target is immobilized on a solid phase. Alternatively, the library may be immobilized on a solid phase and may be probed by contacting it with the target in solution.

Inhibition activity against Wnt signaling was measured by the TopFlash reporter. The lower IC50 value means the higher inhibition activity. A compound can be classified as active if IC50 is 10 μM or below. When IC50 is 5˜10 μM, the compound can be a candidate for a pharmaceutical. A compound is deemed strong if IC50 is 1˜5 μM, and a compound is deemed very strong if IC50 is 1 μM or below.

Most of the compounds of the present invention showed IC50 of 5 μM or below, that means they have strong inhibition activity against Wnt signaling.

Table 3 below shows compounds for bioactivity test selected from the library of the present invention and IC50 values thereof, which were measured by the Reporter gene assay as described in Example 2.

TABLE 3 IC50 (μM) MEASURED BY TopFlash REPORTER GENE ASSAY OF SELECTED LIBRARY COMPOUNDS M.W. RGA, IC50 (μM) NO Structure Formula TopF 1

800.92 C44H44N6O7S  0.081 ± 0.0086 2

774.88 C42H42N6O7S 0.084 ± 0.016 3

620.70 C35H36N6O5 0.098 ± 0.014 4

646.73 C37H38N6O5  0.14 ± 0.025 5

612.68 C33H36N6O6 0.16 ± 0.08 6

795.30 C41H39ClN6O7S  0.18 ± 0.076 7

634.70 C36H35FN6O4 0.26 ± 0.08 8

634.70 C36H35FN6O4 0.27 ± 0.03 9

624.73 C35H40N6O5 0.30 ± 0.02 10

654.76 C39H38N6O4 0.30 ± 0.06 11

743.83 C40H37N7O6S 0.31 ± 0.09 12

616.71 C36H36N6O4 0.34 ± 0.12 13

753.65 C37H34N5Na2O8P 0.36 ± 0.13 14

735.66 C32H32N7Na2O7PS 0.37 ± 0.07 15

859.60 C32H31N7Na4O10P2S 0.37 ± 0.07 16

636.51 C31H31BrFN5O4 0.39 ± 0.05 17

585.72 C32H35N5O4S 0.42 ± 0.04 18

672.77 C39H40N6O5 0.42 ± 0.12 19

613.11 C33H33ClN6O4 0.43 ± 0.08 20

753.27 C39H37ClN6O6S 0.43 ± 0.10 21

613.71 0.45 ± 0.05 22

778.70 C39H37N6Na2O7P 0.45 ± 0.29 23

622.74 C34H34N6O4S 0.47 ± 0.13 24

734.68 0.48 ± 0.11 25

636.74 C36H40N6O5 0.52 ± 0.04 26

629.70 C37H35N5O5  0.52 ± 0.048 27

794.92 C45H42N6O6S 0.52 ± 0.09 28

634.70 C36H35FN6O4 0.52 ± 0.06 29

699.78 C35H37N7O7S 0.53 ± 0.24 30

584.62 C31H32N6O6 0.54 ± 0.06 31

723.62 C33H36N5Na2O9P 0.54 ± 0.08 32

640.72 0.56 ± 0.07 33

634.70 C36H35FN6O4 0.56 ± 0.44 34

616.71 C36H36N6O4  0.58 ± 0.132 35

719.65 C33H32N5Na2O7PS  0.59 ± 0.066 36

595.71 C33H33N5O4S 0.59 ± 0.10 37

636.70 C34H36N8O5 0.60 ± 0.13 38

664.79 C38H44N6O5 0.61 ± 0.09 39

700.86 0.61 ± 0.19 40

631.72 C36H37N7O4 0.63 ± 0.06 41

683.58 C32H29Cl2FN6O4S 0.63 ± 0.09 42

709.66 C32H34N5Na2O7PS  0.66 ± 0.0079 43

630.17 0.66 ± 0.06 44

638.71 C34H31FN6O4S 0.67 ± 0.05 45

668.77 0.67 ± 0.09 46

597.66 C33H35N5O6 0.69 ± 0.15 47

732.86 0.69 ± 0.19 48

597.66 C32H35N7O5  0.7 ± 0.26 49

579.65 C32H33N7O4 0.71 ± 0.43 50

623.72 C33H33N7O4S  0.72 ± 0.075 51

694.9 0.72 ± 0.15 52

618.52 C31H32BrN5O4 0.73 ± 0.09 53

678.80 C37H38N6O5S 0.73 ± 0.03 54

650.77 C37H42N6O5 0.74 ± 0.05 55

700.86 0.74 ± 0.08 56

672.77 C39H40N6O5 0.74 ± 1.46 57

582.26 C32H34N6O5 0.76 ± 0.12 58

605.63 C32H33F2N5O5 0.78 ± 0.13 59

640.72 0.78 ± 0.15 60

658.75 C38H38N6O5 0.79 ± 0.10 61

616.71 C36H36N6O4 0.80 ± 0.07 62

701.81 C40H43N7O5 0.81 ± 0.15 63

826.93 C46H43FN6O6S 0.82 ± 0.25 64

732.85 C40H40N6O6S 0.82 ± 0.33 65

578.66 C33H34N6O4 0.83 ± 0.22 66

652.82 0.84 ± 0.09 67

592.69 C34H36N6O4  0.85 ± 0.089 68

610.74 0.86 ± 0.09 69

582.62 C32H31FN6O4 0.87 ± 0.32 70

686.77 C37H43FN6O6 0.9 ± 0.2 71

621.73 C35H39N7O4  0.9 ± 0.08 72

621.75 C35H35N5O4S 0.90 ± 0.13 73

581.66 C33H35N5O5 0.90 ± 0.27 74

593.6 C31H30F3N5O4 0.91 ± 0.11 75

640.72 0.92 ± 0.14 76

636.74 C36H40N6O5 0.94 ± 0.04 77

782.64 C33H3OFN6Na2O9PS 0.94 ± 0.07 78

554.64 C31H34N6O4 0.95 ± 0.15 79

639.74 C36H41N5O6 0.95 ± 0.21 80

650.67 C32H29F3N6O4S 0.96 ± 0.13 81

646.74 C37H38N6O5 0.97 ± 0.18 82

630.74 C37H38N6O4 0.99 ± 0.14 83

620.70 C35H36N6O5 0.99 ± 0.24 84

594.66 C32H34N8O4   1 ± 0.25 85

652.77  1.0 ± 0.22 86

767.29 C40H39ClN6O6S  1.0 ± 0.25 87

607.66 C34H33N5O6 1.01 ± 0.24 88

733.84 C39H39N7O6S 1.02 ± 0.11 89

625.76 C36H43N5O5 1.03 ± 0.11 90

625.71 C35H39N5O6 1.03 ± 0.16 91

640.73 C35H40N6O6 1.04 ± 0.18 92

703.59 C32H32N7Na2O7P 1.04 ± 0.18 93

661.67 C34H34F3N7O4 1.07 ± 0.2  94

746.66 C35H37N6Na2O8P 1.09 ± 0.16 95

580.68 C33H36N6O4 1.10 ± 0.12 96

608.73 C35H40N6O4 1.11 ± 0.25 97

582.62 C32H31FN6O4 1.13 ± 0.05 98

646.74 C37H38N6O5 1.17 ± 0.15 99

736.82 C39H44N8O7 1.17 ± 0.27 100

610.74 1.21 ± 0.14 101

678.82 C39H46N6O5 1.24 ± 0.07 102

596.68 C33H36N6O5 1.25 ± 0.21 103

628.72 C33H33FN6O4S 1.26 ± 0.19 104

634.75 C31H31FN6O4S2 1.27 ± 0.10 105

760.26 C38H38ClN5O8S 1.27 ± 0.24 106

666.77 C37H42N6O6 1.28 ± 0.10 107

620.72 C30H29FN6O4S2 1.3 ± 0.2 108

580.68 C33H36N6O4 1.31 ± 0.33 109

626.7 C34H38N6O6 1.35 ± 0.15 110

877.21 C39H36ClN6Na2O9PS 1.39 ± 0.36 111

638.75 1.41 ± 0.21 112

732.67 C35H39N6Na2O7P 1.41 ± 0.21 113

596.68 C33H36N6O5 1.41 ± 0.38 114

650.77 C37H42N6O5 1.42 ± 0.51 115

631.72 C37H37N5O5 1.43 ± 0.27 116

620.74 C36H40N6O4 1.43 ± 0.26 117

604.10 C32H34ClN5O5 1.44 ± 0.22 118

679.79 C36H37N7O5S 1.47 ± 0.19 119

749.70 C36H42N5Na2O8P 1.51 ± 0.16 120

587.64 C32H34FN5O5 1.51 ± 0.34 121

646.74 C37H38N6O5 1.53 ± 0.17 122

617.14 C33H37ClN6O4 1.54 ± 0.07 123

595.69 C34H37N5O5 1.55 ± 0.21 124

619.62 C32H31F2N5O6 1.56 ± 0.33 125

619.51 C30H31BrN6O4 1.57 ± 0.29 126

640.73 C38H36N6O4 1.58 ± 0.27 127

645.75 C38H39N5O5 1.61 ± 0.31 128

658.79 C39H42N6O4 1.61 ± 0.59 129

648.55 C32H34BrN5O5 1.64 ± 0.27 130

690.83 C40H46N6O5 1.66 ± 0.18 131

642.66 C33H34N6O8 1.66 ± 0.27 132

564.63 C32H32N6O4 1.71 ± 0.28 133

743.56 C32H30F2N5Na2O9P 1.73 ± 0.22 134

646.74 C37H38N6O5 1.73 ± 0.35 135

696.84 C39H48N6O6 1.77 ± 0.15 136

719.63 C34H36N5Na2O8P 1.83 ± 0.32 137

645.75 C38H39N5O5 1.86 ± 0.30 138

728.04 C32H33ClN5Na2O8P 1.86 ± 0.38 139

653.77 C37H43N5O6 1.89 ± 0.38 140

645.75 C38H39N5O5 1.91 ± 0.24 141

634.70 C36H35FN6O4 1.91 ± 0.28 142

652.77 1.92 ± 0.28 143

651.79 C38H45N5O5 1.93 ± 0.18 144

615.72 C37H37N5O4 1.94 ± 0.48 145

595.69 C34H37N5O5 1.96 ± 0.27 146

631.72 C37H37N5O5 1.99 ± 0.12 147

619.11 C32H35ClN6O5 1.99 ± 0.32 148

632.71 C36H36N6O5 10.01 ± 1.7  149

565.66 C33H35N5O4 10.13 ± 2.38  150

681.86 C40H51N5O5 10.15 ± 1.55  151

668.71 C32H34F2N6O6S 10.19 ± 2.3  152

629.70 C34H39N507 10.78 ± 1.9  153

583.64 C31H33N7O5 10.8 ± 1.97 154

625.76 C36H43N5O5 11.8 ± 0.9  155

667.79 11.85 ± 1.61  156

632.71 C36H36N6O5 12.16 ± 2.02  157

620.72 C33H32N8O3S 12.41 ± 2.36  158

632.68 C32H30F2N6O4S 12.47 ± 2.66  159

620.74 C36H40N6O4 14.05 ± 2.30  160

597.66 C32H35N7O5 14.23 ± 2.05  161

761.93 C40H51N5O8S 14.42 ± 2.77  162

638.74 C33H34N8O4S 15.10 ± 3.34  163

651.84 C39H49N5O4 15.67 ± 1.87  164

607.66 C32H33N9O4 15.69 ± 3.22  165

646.74 C37H38N6O5 17.21 ± 4.11  166

672.75 C39H37FN6O4 17.54 ± 5.57  167

724.61 C32H35N6Na2O9P 19.41 ± 3.40  168

583.64 C31H33N7O5 2.01 ± 0.20 169

595.69 C34H37N5O5 2.01 ± 0.34 170

714.23 C37H36ClN5O6S 2.07 ± 0.43 171

732.67 C35H39N6Na2O7P 2.10 ± 0.34 172

792.73 C37H43N6Na2O9P 2.21 ± 0.35 173

696.84 C39H48N6O6 2.26 ± 0.16 174

732.85 C40H40N6O6S 2.33 ± 0.64 175

599.68 C33H37N5O6 2.36 ± 0.57 176

617.70 C35H35N7O4 2.37 ± 0.22 177

619.51 C30H31BrN6O4 2.37 ± 0.35 178

856.79 C40H39N6Na2O9PS 2.38 ± 0.75 179

662.80 C37H38N6O4S 2.42 ± 0.32 180

646.73 C37H38N6O5 2.42 ± 0.47 181

632.73 C32H36N6O6S 2.47 ± 0.37 182

612.68 C33H36N6O6 2.48 ± 0.22 183

596.68 C33H36N6O5 52.5 ± 0.32 184

623.70 C35H37N5O6 2.56 ± 0.29 185

638.75 2.61 ± 0.19 186

616.71 C36H36N6O4 2.66 ± 0.74 187

655.75 C38H37N7O4 2.67 ± 0.28 188

617.72 C32H35N5O6S 2.67 ± 0.59 189

636.74 C36HN6O5 2.68 ± 0.48 190

676.74 C32H36N8O7S 2.79 ± 0.24 191

641.72 C37H35N7O4 2.81 ± 0.52 192

599.66 C30H29N7O5S 2.85 ± 0.79 193

587.64 C321134FN5O5 2.86 ± 0.49 194

612.68 C33H36N6O6 2.89 ± 0.50 195

653.76 20.91 ± 3.94  196

589.63 C32H33F2N5O4 21.2 ± 2.15 197

611.69 C33H37N7O5 21.77 ± 3.69  198

617.70 C35H35N7O4 22.25 ± 5.69  199

692.85 C39H48N8O4 25.9 ± 3.38 200

790.99 25.92 ± 4.72  201

653.76 26.10 ± 7.10  202

689.21 28.76 ± 5.69  203

725.57 C33H36N5O6 3.03 ± 0.36 204

713.78 C40H39N7O6 3.13 ± 0.44 205

579.65 C32H33N7O4 3.14 ± 0.68 206

610.74 3.18 ± 0.75 207

582.65 C32H34N6O5 3.25 ± 0.41 208

646.74 C37H38N6O5 3.27 ± 0.80 209

605.69 C34H35N7O4  3.3 ± 0.58 210

697.78 C37H43N707 3.57 ± 0.89 211

732.85 C40H40N6O6S 3.61 ± 0.47 212

652.74 C36H40N6O6 3.62 ± 0.63 213

683.80 C40H41N7O4 3.62 ± 0.65 214

611.73 C35H41N5O5 3.72 ± 0.47 215

595.65 C32H33N7O5 3.75 ± 0.32 216

711.58 C32H33FN5Na2O8P 3.8 ± 1.1 217

617.70 C35H35N7O4 3.87 ± 0.45 218

646.74 C37H38N6O5 3.96 ± 0.93 219

682.23 C37H36ClN5O4S 3.97 ± 0.57 220

840.95 C42H48N8O9S 33.10 ± 4.07  221

623.74 C35H41N7O4 36.10 ± 2.69  222

670.78 C35H38N6O6S 36.4 ± 2.0  223

578.66 C33H34N6O4 4.01 ± 0.96 224

674.74 C34H35FN6O6S 4.3 ± 0.7 225

597.66 C32H35N7O5  4.3 ± 0.67 226

701.81 C41H43N5O6 4.33 ± 0.50 227

898.83 C42H41N6Na2O10PS 4.33 ± 1.59 228

580.64 4.51 ± 0.72 229

661.73 C32H35N7O7S 4.78 ± 0.69 230

598.69 C34H38N4O6 4.83 ± 0.71 231

573.64 C30H28FN5O4S 4.85 ± 0.57 232

570.66 C30H30N6O4S 4.97 ± 0.73 233

598.65 C32H34N6O6 4.98 ± 0.69 234

631.14 C32H31ClN6O4S 40.2 ± 5.7  235

675.60 C32H31BrN6O4S 40.7 ± 6.4  236

595.73 C35H41N5O4 41.7 ± 4.2  237

620.72 C33H32N8O3S 46.7 ± 6.13 238

620.74 C32H37FN6O4S 49.8 ± 4.8  239

634.72 C36H38N6O5 5.09 ± 1.32 240

610.70 C34H38N6O5 5.41 ± 0.89 241

919.25 C41H38ClN6Na2O10PS 5.50 ± 2.4  242

722.63 C34H37N4Na2O9P 5.80 ± 0.99 243

633.72 C31H35N7O6S 5.81 ± 0.58 244

628.63 C32H32N6O8 5.98 ± 1.03 245

628.72 C33H33FN6O4S 6.19 ± 0.73 246

688.83 6.59 ± 0.86 247

597.70 C34H39N5O5 6.66 ± 0.88 248

632.71 C36H36N6O5 6.71 ± 1.57 249

583.68 C33H37N5O5 6.8 ± 1.5 250

652.77 6.98 ± 1.45 251

618.63 C32H32F2N6O5 1.14 ± 0.07 252

679.74 C38H38FN5O6 7.05 ± 0.87 253

608.69 C34H36N6O5 7.10 ± 0.99 254

599.64 7.13 ± 1.35 255

639.70 C33H3OFN7O4S 7.17 ± 1.33 256

626.70 C34H38N6O6 7.20 ± 1.06 257

641.72 C37H35N7O4 7.26 ± 1.30 258

641.67 C33H35N707 7.51 ± 2.1  259

600.63 7.62 ± 1.89 260

648.71 C35H36N8O5 8.43 ± 2.07 261

694.80 C37H38N6O6S 8.48 ± 0.90 262

600.66 C32H36N6O6 8.48 ± 1.37 263

627.71 C33H33N5O6S 9.09 ± 0.67 264

556.62 C29H32N8O4 9.11 ± 1.82 265

598.65 C32H34N6O6  9.3 ± 0.53 266

857.78 C39H38N7Na2O9PS 9.43 ± 1.65 267

636.70 C34H36N8O5 6.63 ± 1.35

It has been found according to the present invention that compounds of general Formula (I) have less CYP3A4 inhibitory activity (higher IC50). The details of the less measurement of CYP3A4 inhibitory activity are disclosed in Example 1. Less CYP3A4 inhibitory activity means that the compounds of the present invention are more pharmacologically favorable in terms of adverse reactions.

Table 4 below shows compounds for bioactivity test selected from the library of the present invention and IC50 values thereof, which were measured by the P450 CYP3A4 Inhibitory Activity Screening as described in Example 1.

TABLE 4 IC50(μM) MEASURED BY P450 CYP3A4 INHIBITORY ACTIVITY SCREENING OF SELECTED LIBRARY COMPOUNDS CYP3A4 inhibition, M.W. IC50 (μM) NO Structure Formula fluorescent assay 1

636.74 C36H40N6O5 5.00 2

596.68 C33H36N6O5 5.23 3

619.51 C30H31BrN6O4 5.33 4

618.69 C34H34N8O4 5.40 5

632.71 C36H36N6O5 5.84 6

694.80 C37H38N6O6S 6.78 7

692.85 C39H48N8O4 6.84 8

661.73 C32H35N7O7S 6.95 9

607.66 C34H33N5O6 6.95 10

632.71 C36H36N6O5 7.02 11

597.66 C33H35N5O6 7.58 12

636.74 C36H40N6O5 7.65 13

596.68 C33H36N6O5 8.00 14

621.73 C35H39N7O4 8.42 15

581.66 C33H35N5O5 8.79 16

701.79 C35H39N7O7S 9.00 17

666.77 C37H42N6O6 9.02 18

632.73 C32H36N6O6S 9.16 19

564.63 C32H32N6O4 9.65 20

652.74 C36H40N6O6 10.10 21

626.7  C34H38N6O6 10.20 22

610.70 C34H38N6O5 11.60 23

673.74 C32H35N9O6S 12.00 24

659.73 C38H37N5O6 12.90 25

597.66 C32H35N7O5 13.10 26

607.66 C32H33N9O4 13.50 27

640.69 C33H36N8O6 16.80 28

596.68 C33H36N6O5 17.90 29

487.55 C27H29N5O4 18.10 30

617.72 C32H35N5O6S 18.70 31

612.68 C33H36N6O6 18.90 32

641.72 C34H39N7O6 19.90 33

612.68 C33H36N6O6 24.20 34

618.7 C31H34N6O6S 24.50 35

676.74 C32H36N8O7S 26.40 36

595.71 C33H33N5O4S 26.7 37

597.66 C32H35N7O5 34.30 38

640.73 C35H40N6O6 34.60 39

611.69 C33H37N7O5 35.30 40

567.64 C31H33N7O4 39.10 41

612.68 C33H36N6O6 41.40Q 42

626.70 C34H38N6O6 44.10 43

627.65 C32H33N7O7 44.40 44

583.64 C31H33N7O5 45.10 45

661.67 C34H34F3N7O4 >10 46

623.7  C34H37N7O5 >50 47

594.66 C32H34N8O4 >50 48

567.64 C32H33N5O5 >50 49

633.69 C36H35N5O6 >50 50

652.52 C32H31Cl2N5O6 >50 51

756.71 C37H38N6Na2O9 >50 52

583.64 C31H33N7O5 >50 53

582.65 C32H34N6O5 >50 54

583.63 C32H33N5O6 >50 55

662.71 C32H34N6O8S >50 56

584.62 C31H32N6O6 >50 57

633.63 C32H36N5O7P >50 58

636.70 C34H36N8O5 >50 59

794.92 C45H42N6O6S 2.63 60

620.70 C35H36N6O5 4.84 61

646.73 C37H38N6O5 5.92

The present invention is also related to methods for preventing or treating an acute myeloid leukemia comprising administering to the subject the compound having Formula (I) above.

In one aspect, the present invention provides compounds that inhibit the formation of a complex of β-catenin, p300 and TCF binding onto c-Myc protein and formation of a complex of β-catenin, p300 and TCF binding onto survivin promoter.

In another aspect, the present invention provides compounds, in particular those having Formula (II), that control c-Myc protein.

It has been found according to the present invention that compounds of general Formula (I) affect the cell proliferation and inhibit the growth of AML cancer cells, as described in Example 3.

GI50 of MV-4-11 shows cell growth inhibition activity against AML cancer cells. The lower GI50 value means the higher inhibition activity. A compound can be classified as active if GI50 is 10 μM or below. When GI50 is 5˜10 μM, the compound can be a candidate for a pharmaceutical. A compound is deemed strong if GI50 is 1˜5 and a compound is deemed very strong if GI 50 is 1 uM or below.

Most of the compounds of the present invention showed GI50 of 5 μM or below, that means they have strong inhibition activity against AML cancer cells.

Table 5 below shows compounds for bioactivity test selected from the library of the present invention and GI50 values thereof, which were measured by Cell Growth Inhibition Assay) as described in Example 3.

TABLE 5 CELL GROWTH INHIBITION ACTIVITY (GI50) ON AML CANCER CELLS OF SELECTED LIBRARY COMPOUNDS NO Structure MV-4-11, GI50 (μM) 1

0.19 2

0.6 3

0.18 4

0.17 5

0.05 6

0.04 7

0.27 8

0.05 9

0.07 10

1.32 11

1.97 12

2.99 13

2.01 14

0.16 15

2.14 16

0.63 17

0.36 18

0.36 19

0.45 20

2.24 21

0.3 22

0.74 23

0.96 24

2.03 25

0.24 26

0.78 27

1.11 28

1.35 29

0.39 30

0.82 31

5.75 32

N.D upto 50 uM 33

0.65 34

1.25 35

1.12 36

0.9 37

0.24 38

0.18 39

0.96 40

0.27 41

1.56 42

0.64 43

0.31 44

0.55 45

2.79

The following non-limiting examples illustrate the compounds, and the use of this invention.

Preparation Example 1, Preparation of (N-Fmoc-N′—R₄-hydrazino)-acetic acid

(1) Preparation of N-Fmoc-N′-Methyl Hydrazine

2 L, two-neck, round-bottomed-flask was fitted with a glass stopper and a calcium tube. A solution of R₄-hydrazine (20 g, 139 mmol, where R₄ is methyl) in THF (300 mL) was added and a solution of DiBoc (33 g, 153 mmol) in THF was added. Saturated sodium bicarbonate aqueous solution (500 mL) was added dropwise via addition funnel over 2 hours with vigorous stirring. After 6 hours, a solution of Fmoc-Cl (39 g, 153 mmol) in THF was added slowly. The resulting suspension was stirred for 6 hours at 0° C. The mixture was extracted with ethyl acetate (EA, 500 mL) and the organic layer was retained. The solution was dried with sodium sulfate and evaporated in vacuo. The next step proceeded without purification.

A 1 L, two-necked, round-bottom-flask was fitted with a glass stopper and a calcium tube. A solution of the product from the previous step in MeOH (300 mL) was added and conc. HCl (30 mL, 12 N) was added slowly via addition funnel with magnetic stirring in ice water bath and stirred overnight. The mixture was extracted with EA (1000 mL) and the organic layer was retained. The solution was dried with sodium sulfate and evaporated in vacuo. The residue was purified by recrystallization with n-hexane and EA to give N-Fmoc-N′-methyl hydrazine (32.2 g, 83%). ¹HNMR (DMSO-D6) δ 7.90˜7.88 (d, j=6 Hz, 2H,), δ 7.73˜7.70 (d, J=9 Hz, 2H,), 7.44˜7.31 (m, 4H), 4.52˜4.50 (d, J=6 Hz, 2H), 4.31˜4.26 (t, J=6 Hz, 1H), 2.69 (s, 1H).

(2) Preparation of (N-Fmoc-N′—R₄-hydrazino)-acetic acid t-butyl ester

1 L, two-necked, round-bottom-flask was fitted with a glass stopper and reflux condenser connected to a calcium tube. A solution of N-Fmoc-N′—R₄ hydrazine (20 g, 75 mmol) in toluene (300 mL) was added. A solution of t-butylbromo acetate (22 g, 111 mmol) in toluene (50 mL) was added slowly. Cs₂CO₃ (49 g, 149 mmol) was added slowly. NaI (11 g, 74 mmol) was added slowly with vigorous stirring. The reaction mixture was stirred at reflux temperature over 1 day. The product mixture was filtered and extracted with EA (500 mL). The solution was dried over sodium sulfate and evaporated in vacuo. The product was purified by chromatography with hexane:EA=2:1 solution to give (N-Fmoc-N′-methyl-hydrazino)-acetic acid t-butyl ester (19.8 g, 70%). ¹H-NMR (CDCl₃-d) δ 7.78˜7.75 (d, J=9 Hz, 2H,), δ 7.61˜7.59 (d, J=6 Hz, 2H,), 7.43˜7.26 (m, 4H), 4.42˜4.40 (d, J=6 Hz, 2H), 4.23 (b, 1H), 3.57 (s, 2H), 2.78 (s, 3H), 1.50 (s, 9H).

(3) Preparation of (N-Fmoc-N′-methyl-hydrazino)-acetic acid

1 L, two-neck, round-bottomed-flask was fitted with a glass stopper and reflux condenser connected to a calcium tube. (N-Fmoc-N′—R₄-hydrazino)-acetic acid t-butyl ester (20 g, 52 mmol) was added. A solution of HCl (150 mL, 4 M solution in dioxane) was added slowly with vigorous stirring in an ice water bath. The reaction mixture was stirred at RT over 1 day. The solution was concentrated completely under reduced pressure at 40° C. A saturated aq. NaHCO₃ solution (100 mL) was added and the aqueous layer was washed with diethyl ether (100 mL). Conc. HCl was added dropwise slowly at 0° C. (pH 2-3). The mixture was extracted and the organic layer was retained (500 mL, MC). The solution was dried with sodium sulfate and evaporated in vacuo. The residue was purified by recrystallization with n-hexane and ethyl acetate to give (N-Fmoc-N′-methyl-hydrazino)-acetic acid (12 g, 72%). ¹H-NMR (DMSO-d₆) δ 12.38 (s, 1H), 8.56 (b, 1H), 7.89˜7.86 (d, J=9 Hz, 2H,), 7.70˜7.67 (d, J=9 Hz, 2H,), 7.43˜7.29 (m, 4H), 4.29˜4.27 (d, J=6 Hz, 2H), 4.25˜4.20 (t, J=6 Hz, 1H), 3.47 (s, 2H), 2.56 (s, 3H).

Preparation Example 2

Title Compound:

To prepare the title compound, the General Scheme of Reverse-Turn Mimetic Library which is described in the above in this specification has been performed by the following scheme:

In the above scheme ‘Pol’ represents a bromoacetal resin (Advanced ChemTech) and detailed procedure is illustrated below.

Step 1

A bromoacetal resin (37 mg, 0.98 mmol/g) and a solution of 2-(4-(aminomethyl)-1H-benzo[d]imidazol-1-yl)acetamide in DMSO (1.4 mL) were placed in a Robbins block (FlexChem) having 96 well plates. The reaction mixture was shaken at 60° C. using a rotating oven [Robbins Scientific] for 12 hours. The resin was washed with DMF, MeOH, and then DCM

Step 2

A solution of commercial available Fmoc-Tyr(OtBu)-OH (4 equiv.), PyBob (4 equiv.), HOAt (4 equiv.), and DIEA (12 equiv.) in DMF was added to the resin. After the reaction mixture was shaken for 12 hours at room temperature, the resin was washed with DMF, MeOH, and then DCM.

Step 3

To the resin swollen by DMF before reaction was added 25% piperidine in DMF and the reaction mixture was shaken for 30 min at room temperature. This deprotection step was repeated again and the resin was washed with DMF, Methanol, and then DCM. A solution of hydrazine acid (4 equiv.), HOBt (4 equiv.), and DIC (4 equiv.) in DMF was added to the resin and the reaction mixture was shaken for 12 hours at room temperature. The resin was washed with DMF, MeOH, and then DCM.

Step 4

The resin obtained in Step 3 was treated with formic acid (1.2 mL each well) for 18 hours at room temperature. After the resin was removed by filtration, the filtrate was condensed under a reduced pressure using SpeedVac [SAVANT] to give the product as oil. The product was diluted with 50% water/acetonitrile and then lyophilized after freezing. ¹H NMR (CDCl₃): δ 7.610 (s, 1H), 7.321˜7.220 (m, 5H), 7.132˜7.117 (d, J=7.4 Hz, 2H), 6.878 (s, 1H), 6.685˜6.662 J=5.6 Hz, 1H), 6.635˜6.619 (d, J=7.9 Hz, 2H), 6.328˜6.313 (d, J=7.9 Hz, 2H), 6.223 (s, 1H), 5.698˜5.619 (td, J=16.7 Hz, J=6.3 Hz, 1H), 5.391˜5.363 (d, J=14.2 Hz, 1H), 5.211˜5.154 (m, 3H), 4.543 (s, 2H), 4.455˜4.427 (d, J=14.3 Hz, 1H), 4.262˜4.153 (qd, J=15.3 Hz, J=6.1 Hz, 2H), 3.912˜3.894 (d, J=9.0 Hz, 1H), 6.635˜6.619 (t, J=11.0 Hz, 1H), 3.486˜3.345 (m, 4H), 3.201˜3.345 (dd, J=5.3 Hz, J=13.3 Hz, 1H).

Preparation Example 3

Title Compound

To prepare the title compound, the General Scheme of Reverse-Turn Mimetic Library which is described in the above in this specification has been performed by the following scheme:

In the above scheme ‘Pol’ represents a bromoacetal resin (Advanced ChemTech) and detailed procedure is illustrated below.

Step 1

A bromoacetal resin (37 mg, 0.98 mmol/g) and a solution of 6-(aminomethyl)picolinamide in DMSO (1.4 mL) were placed in a Robbins block (FlexChem) having 96 well plates. The reaction mixture was shaken at 60° C. using a rotating oven [Robbins Scientific] for 12 hours. The resin was washed with DMF, MeOH, and then DCM

Step 2

A solution of commercial available Fmoc-Tyr(OtBu)-OH (4 equiv.), PyBob (4 equiv), HOAt (4 equiv), and DIEA (12 equiv) in DMF was added to the resin. After the reaction mixture was shaken for 12 hours at room temperature, the resin was washed with DMF, MeOH, and then DCM.

Step 3

To the resin swollen by DMF before reaction was added 25% piperidine in DMF and the reaction mixture was shaken for 30 min at room temperature. This deprotection step was repeated again and the resin was washed with DMF, Methanol, and then DCM. A solution of hydrazine acid (4 equiv), HOBt (4 equiv), and DIC (4 equiv) in DMF was added to the resin and the reaction mixture was shaken for 12 hours at room temperature. The resin was washed with DMF, MeOH, and then DCM.

Step 4

The resin obtained in Step 3 was treated with formic acid (1.2 mL each well) for 18 hours at room temperature. After the resin was removed by filtration, the filtrate was condensed under a reduced pressure using SpeedVac [SAVANT] to give the product as oil. The product was diluted with 50% water/acetonitrile and then lyophilized after freezing.

¹H NMR (CDCl₃): δ 8.190˜8.165 (d, J=7.5 Hz, 1H), 8.055 (m, 1H), 7.900˜7.849 (t, J=7.5 Hz, 1H), 7.472˜7.447 (d, J=7.5 Hz, 1H), 7.397˜7.372 (d, J=7.5 Hz, 1H), 7.335˜7.311 (d, 7.5 Hz, 1H), 7.271˜7.247 (m, 4H), 6.636˜6.596 (t, J=6.0 Hz, 1H), 6.575˜6.547 (d, J=8.4 Hz, 2H), 6.477˜6449 (d, J=8.4 Hz, 2H), 5.897 (m, 1H), 5.724˜5.666 (m, 1H), 5.264˜5.145 (m, 4H), 4.973˜4.926 (dd, J=3.6, 10.5 Hz, 1H), 4.46˜4.39 (dd, J=6.0 Hz, 1H), 4.34˜4.27 (dd, J=6.0 Hz, 1H), 4.030˜4.021 (d, J=3.6 Hz, 1H), 3.996˜3.928 (m, 1H), 3.778˜3.705 (t, J=11.1 Hz, 1H), 3.705˜3.383 (m, 5H), 3.302˜3.238 (dd, J=5.4, 13.5 Hz, 1H)

Preparation Example 4

Title Compound

To prepare the title compound, the General Scheme of Reverse-Turn Mimetic Library which is described in the above in this specification has been performed by the following scheme:

In the above scheme ‘Pol’ represents a bromoacetal resin (Advanced ChemTech) and detailed procedure is illustrated below.

Step 1

A bromoacetal resin (37 mg, 0.98 mmol/g) and a solution of 3-(aminomethyl)benzamide in DMSO (1.4 mL) were placed in a Robbins block (FlexChem) having 96 well plates. The reaction mixture was shaken at 60° C. using a rotating oven [Robbins Scientific] for 12 hours. The resin was washed with DMF, MeOH, and then DCM

Step 2

A solution of commercial available Fmoc-Tyr(OtBu)-OH (4 equiv.), PyBob (4 equiv.), HOAt (4 equiv.), and DIEA (12 equiv.) in DMF was added to the resin. After the reaction mixture was shaken for 12 hours at room temperature, the resin was washed with DMF, MeOH, and then DCM.

Step 3

To the resin swollen by DMF before reaction was added 25% piperidine in DMF and the reaction mixture was shaken for 30 min at room temperature. This deprotection step was repeated again and the resin was washed with DMF, Methanol, and then DCM. A solution of hydrazine acid (4 equiv.), HOBt (4 equiv.), and DIC (4 equiv.) in DMF was added to the resin and the reaction mixture was shaken for 12 hours at room temperature. The resin was washed with DMF, MeOH, and then DCM.

Step 4

The resin obtained in Step 3 was treated with formic acid (1.2 mL each well) for 18 hours at room temperature. After the resin was removed by filtration, the filtrate was condensed under a reduced pressure using SpeedVac [SAVANT] to give the product as oil. The product was diluted with 50% water/acetonitrile and then lyophilized after freezing.

¹H NMR (CDCl₃): δ 8.506 (s, 1H), δ 7.821˜7.796 (d, J=7.6 Hz, 1H), δ 7.604 (s, 1H), δ 7.469˜7.379 (m, 3H), δ 7.346˜7.320 (m, 2H), δ 7.234˜7.210 (d, J=6.9 Hz, 2H), δ 7.010 (s, 1H), δ 6.916˜6.888 (d, J=8.5 Hz, 3H), δ 6.766˜6.737 (d, J=8.5 Hz, 2H), δ 6.570˜6.530 (t, J=6.0 Hz, 1H), 5.810˜5.755 (d, J=16.6 Hz, 1H), δ 5.715˜5.581 (m, 1H), δ 5.213˜5.163 (m, 3H), δ 4.873˜4.832 (dd, J=6.5 Hz, J=6.5 Hz, 1H), δ 3.892˜3.837 (d, J=16.6 Hz, 1H), δ 3.633˜3.576 (d, J=17.2 Hz, 2H), δ 3.504˜3.283 (m, 6H)

Example 1

P450 CYP3A4 Inhibitory Activity Screening

Test Compounds:

Assay was conducted in a 200 μL volume in 96-well microtiter plates using cDNA-expressed human hepatic CYP3A4 (supersome, BD Gentest™ #456202). 7-Benzyloxy-4-trifluoromethyl-coumarin (BFC) was used as a substrate for CYP3A4. Test articles and substrate BFC were dissolved in 100% acetonitrile. The final volume of acetonitrile in the incubation mixture was less than 1% (volume/volume). Potassium phosphate buffer (pH 7.4, final concentration 0.1 M), MgCl₂ (final concentration 8.3 mM), EDTA (final concentration 1.67 mM), a test article stock solution, a CYP3A4 supersome and NADPH (final concentration 0.25 mM) were added to each well. The reaction was initiated by the addition of substrate (BFC, final concentration 30 M) after a 10 min pre-incubation at 37° C. After 10 min incubation at 37° C., the reaction was terminated by the addition of 75 μL of acetonitrile:0.5 M Tris-base=4:1 (volume/volume). Thereafter, Fluorescent signal was measured using a fluorometer. BFC metabolite, 7-hydroxy-4-trifluoromethyl-coumarin, was measured using an excitation wavelength of 409 nm and an emission wavelength of 530 nm. FIGS. 2A to 2E show IC50 of the test compounds of CYP3A4 inhibition assay. Compounds A to E showed weak inhibition of CYP3A4 enzyme.

TABLE 6 IC₅₀ values of Compounds against CYP3A4 activity Test Compound IC₅₀ (μM) A 13.1 B 34.6 C 24.2 D 10.2 E >10

Example 2

TopFlash Reporter Gene Bioassay for the Measurement of IC50 Against SW480 Cells

Test Compound:

SW480 cells were transfected with the usage of Superfect™ transfect reagent (Qiagen, 301307). Cells were trypsinized briefly 1 day before transfection and plated on 6 well plate (5×10⁵ cells/well) so that they were 50-80% confluent on the day of transfection.

Four microgram (TopFlash) and one microgram (pRL-null) of DNAs were diluted in 150 μl of serum-free medium, and 30 μl of Superfect™ transfect reagent was added. The DNA-Superfect mixture was incubated at room temperature for 15 min, and then, 1 ml of 10% FBS DMEM was added to this complex for an additional 3 hours of incubation. While complexes were forming, cells were washed with PBS twice without antibiotics.

The DNA-Superfect™ transfect reagent complexes were applied to the cells before incubating at 37° C. at 5% CO₂ for 3 hours. After incubation, recovery medium with 10% FBS was added to bring the final volume to 1.18 ml. After 3 hours incubation, the cells were harvested and reseeded to a 96 well plate (3×10⁴ cells/well). After overnight incubation at 37° C. at 5% CO₂, the cells were treated with Compound F for 24 hours. Finally, the activity was checked by means of luciferase assay (Promega, E1960).

FIG. 3 illustrates the results of the measurement of IC₅₀ of Compound F for SW480 cells. IC50 was 0.73±0.08 μM.

Example 3

Cell Growth Inhibition Activity on AML Cancer Cells (Cell Growth Inhibition Assay)

Test Compound:

Cell growth Inhibition assay was performed to investigate the rate of inhibition of cell proliferation by the test compounds. MV-4-11 (human, Acute Myeloid Leukemia cell line) cells were cultured in Iscove's modified Dulbecco's medium (IMDM) including 10% fetal bovine serum (FBS), 1× penicillin/streptomycin (10,000 units/ml Penicillin, 10,000 g/ml Streptomycin in 0.85% NaCl). MV-4-11 cells were harvested with IMDM medium and 5×10⁴ cells/well were transferred to each well of 96 well culture plates (Nunc, #167008). The test compounds were treated with the serial dilution and duplicated for each concentration. For the serial dilution, the test compounds were repeatedly diluted with the same volume of media onto 96-well assay block (costar, #3956). After the dilution, each compound was added to each well. The background absorbance was also measured during the test compounds treatment by adding the IMDM media in replacement of test compound to the negative control plate. The plates were incubated for 3 days (72 hours) at 37° C. in the humidified incubator containing 5% CO₂. On the last day, 20 μL of CellTiter 96 Aqueous One Solution (Promega #G3581) was added to the culture in each well and the plates were incubated for a few hours at 37° C. in the humidified incubator containing 5% CO₂. After the incubation, the absorbance of each cell was measured at 490 nm using an EnVision (Perkinelmer, USA). The GI50 values were calculated using a Prism 3.0 program. The results showed that the test compounds affected the cell proliferation and inhibited the growth of AML cancer cells. FIG. 4 shows the result of the inhibition. GI50 of Compound B was 0.188 μM.

As described above, the present invention provides new compounds of revers-turn mimetics, which can be used as pharmaceutical compounds, especially on AML cancer cells. The invention has been described in detail with reference to preferred embodiments thereof. However, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. 

1. A compound having the structure of Formula (III):

wherein: R₁ is indolyl substituted by C₁₋₁₂alkyl and —COR₁₂, wherein R₁₂ is C₁₋₁₂alkyl; R₆ is phenyl; R₄ is allyl; X₁ is hydrogen; and each of X₂ and X₃ is independently hydrogen and hydroxyl.
 2. A compound having the structure of Formula (IV): (III)-R₇ wherein (III) is the formula:

R₁ is indolyl substituted by C₁₋₁₂alkyl and —COR₁₂, wherein R₁₂ is C₁₋₁₂alkyl; R₆ is phenyl; R₄ is allyl; X₁ is hydrogen; each of X₂ and X₃ is independently hydrogen and hydroxyl; either X₂ or X₃ is linked to R₇ via Y; Y is an oxygen in X₂ or X₃; and R₇ is hydroxyalkyl, glycosyl, phosphoryloxymethyoxycarbonyl, substituted or unsubstituted piperidine carbonyloxy, or a salt thereof; or Y—R₇ is an amino acid residue, a combination of amino acid residues, phosphate, hemimalate, hemisuccinate, dimethylaminoalkylcarbamate, dimethylaminoacetate, acetate, succinate, malate, formate, benzoate, or a salt thereof.
 3. A method for treating an acute myeloid leukemia, comprising administering to a patient in need thereof an effective amount of the compound according to claim
 1. 4. A method for treating an acute myeloid leukemia, comprising administering to a patient in need thereof an effective amount of the compound according to claim
 2. 